Dragon fish


Dragon Fish - Arovana

Arovana is an unusual fish. On the planet she lives from ancient times. In the Jurassic period lived exactly the same fish, judging by the fossilized remains. In the East, Arvanov is called dragon fish. It is freshwater, living in the tropics. In the eastern part of the world, it is considered a talisman of luck in business.



This is a large fish with beautiful mirror scales, reminiscent of a mythical dragon. Long, like a blade. In nature, on average - about 1 m 10 cm. Fishermen caught 1.5 m each.

Scales rigid as bony plates. Anal fin and dorsal relatively long. Grow a little farther from the center of the back and reach the tail. Pectoral fins small. The young individuals are bright, then darken.

The mouth, as the point of the blade. It opens wide and fish can capture large prey. The mustache grows from the lower lip. Depending on the habitat, they are black with a blue tint or red-green. Scales in Arovan different colors.

Now more than 200 species are known. They have a different shape, body color, size of scales. By the elite include: purple, red and gold. There are new colors.

Each species has its own color. Fans appreciate pure, saturated. The color is visible in individuals that grew from 35 to 40 cm. Males are slimmer than females, and the anal fin is much longer. Trendy blue and purple, with a border on the scales or iridescent.


Consider the popular types of Arwan, which are contained in the aquarium.

Asian red arvana

Asian Arovana is popular and expensive. He lives in Southeast Asia, in quiet rivers. It is worth tens of thousands of cu Asian Arovana - a kind of endangered, they sell a little. Grown-up fish implanted chip. They contain a pedigree, information in what area is grown, who is a breeder. The owner must have a certificate of ownership. Asian Arovana is a bright red fish and lives in the ponds of the richest people in the world.


In childhood, the golden Arovana is less bright, and with age it shines like an ingot of gold. Golden Arovana is endangered, so their prices are much higher than other fishermen.


Black Arovana, when small, has stripes yellow and white on scales, and its fins are black. With age, the scales become grayish. According to legend, keeps evil behind the house, neutralizes negative energy, gives good luck.

African Arovana

Rare and lives in the upper Nile. Swims in the rivers of Chad, Senegal, Niger and the Gambia. Males are brighter. They grow up to 91 cm. Adult individuals are more similar to catfish and do not resemble members of their family.


Platinum Arovana is the only fish in the world with a perfect, even, spotless color. Up to 40 cm long. This fish has a peculiarity, it mows with the right eye. In an aquarium, feed is obtained at eye level, and in nature feed is on the surface of the water, so over time, the eye began to mow.

Aro Dinasti lives such a platinum arovana. He exhibited it in Singapore (an exhibition was held there) and asked for 400 thousand cu. But very quickly, Aro Dynasty changed his mind and left the pet as unique. Collectors believe that platinum Arovana will be sold later, as he lives for about 8 years.


Australian or jardini pearl. Less congeners. A jardini has 7 horizontal rows of scales that have a pink rim.

South American silver

Arovana Silver lives in the Amazon. It can be up to 1.5 m in length. Her scales shimmer with silver. It grows up to 90 cm.

She has one arovan wedge-shaped tail. The dorsal and anal fins have an extension to the caudal fin; they almost merge with it. This species is readily bred. She's not as expensive as an Asian.



Arovan grows up to 30-35 cm in six months. You need to keep it in a large aquarium. Different types of arvan reach sizes of 80-120 cm. Fishes of 35 cm will need a reservoir of not less than 250 liters. The larger the aquarium, the better. The minimum size: 160 is long, 60 cm - width and 50 cm - height.

In nature, jump up to 3 m above the water. Catch insects and small birds. If they jump out of the aquarium, they can get hurt, or even die. The aquarium needs an opaque lid without gaps.

Order an aquarium in which the fish will be able to unfold freely, without making any special efforts. Best from 800 to 1000 liters. Need lights with slowly turning on the lamps. So you do not scare your pet.

Arovana - a powerful fish, can break a glass aquarium, heater or cover. Order plexiglass pond. It is better to buy a large aquarium so that a large neighbor, such as snakeheads, can swim nearby.

The fish is big and heavily pollutes the water in the tank with waste. A powerful filter is required, pumping 3 or 4 times the volume of water in an aquarium in an hour. Head out of it to the bottom. Siphon the ground regularly, change 1/4 of the total water volume weekly.

Suitable water temperature is from 24 ° C to 30 ° C. Water hardness from 8 to 12 degrees. Acidity from 6.5 to 7 pH. Plant plants with strong roots and large leaves, for example, valisneria. The weak will uproot and eat. Arovana can live without plants.



"Dragons" are more likely to eat live food (fish, worms, insects). More often they are given fresh frozen or dry. Treats: crickets with frogs.

Nutritious shrimps, boil red hot. A big fish will eat a treat with shell, a small clean. In nature, arovanas catch small birds and even mice.

You can feed arovan sea small fish: sprat, capella, etc. If you have a pet up to 30 cm - cut the fish in half. Cook pollock with hake and give boneless meat in pieces: in small plates or in cubes, in strips up to 5 cm. Store, freezing in bags. Add in the feed vitamins for fish.

Have fish, food, remove sharp fins, shells. If he chokes, he may die. 1-2 times in 7 days arrange fasting days. Prevent obesity.

Available product - beef heart. Fat that does not like fish and harmful, remove. For large and medium-sized representatives of the breed, cut it into 1 cm. Pets do not eat the heart more readily than other food, but do not refuse.

Arated with gusto eat insects. You can feed them

  • grasshoppers;
  • centipedes;
  • Maybot larvae and adults;
  • crickets.

Aravan is an intellectual fish, she recognizes the owner, swims up to him, to feed him from his hands, stroke him. Together with other fish, the arovans get on when the host properly feeds and provides the right care.

Who do arovans get on with?

Calm, peaceful fish in the neighbors do not fit. Small she can swallow, as she swallows everything that gets into her mouth. A large Arovana fights with a representative of its own species, so you need to keep in a large aquarium where you can get along with it: astronotus, Indian knives, parrot fish, brocade pterigoplichts, Platydoras or chaffing catfish, scalars, huge gourami, fractocephalus, percostomy.


Arovan breeding

If the care and food in the aquarium is abnormal, they are rarely mature and capable of reproduction. For fish to give offspring, we need conditions close to natural and an aquarium size of 2 m. In the pond you can breed this beautiful fish when the water is stable and warm. Caviar in diameter, when tossed about by a female, is 1.5 cm each - very large. The calf is kept in the mouth by a male from 50 to 60 days. The fry have a large, comfortable yolk sac. They bite, and then live, eating from it for 3 to 4 days. Then look for food yourself. Feed them with daphnia, worms.

Often, breeders transfer fry to a nearby aquarium from 100 liters to 150 liters. Grown up, relocated to more spacious. The babies are fed with mosquito larvae, daphnia, and when they grow up, they give adult food.

Arovana fish is smart. Having started it, you will get an intelligent, beautiful pet, which is interesting to grow, and you can even pet and pamper you with tasty food. Try to keep, adhering to the recommendations on nutrition and care, the pet will live up to 8-12 years.

Polyperus: content in the aquarium

Large, with an interesting history, unusual appearance and habits of the representatives of the freshwater aquarium ... Perhaps they are not as well known as other fish, but no less interesting. In this article we will tell about the representatives of a unique family of fish, which are called the revived dinosaurs, dragons, polypherses.

A bit of history

It is believed that these creatures appeared in ancient Africa during the Cretaceous period, and this is more than 60 million years ago. As evidence of such a distant origin, primitive anatomy of polypteruses is given: the cartilaginous skeleton, which is similar in construction to the shark or slope, the location of the cranial plates, and some others.

The genus has two subspecies:

  • Erpetoichthys with a single representative of the calamoiht Calabar (snake fish),
  • Polypterus with numerous species and subspecies.

In nature

All members of the polypterus family live in lakes and rivers of Africa and India with fresh shallow waters. These are bottom residents who are used to being in the penumbra and love all kinds of bushes and shelters.

What does a polyterus look like?

These amazing creatures have a serpentine appearance:

  • wide head with big nostrils
  • strongly extended body no longer than 90 cm.

The hull is protected by large rhombic scales. In its composition, scientists have discovered a ganoid - solid protein, which was present in the composition of the scales of the disappeared fish.

Another feature is the characteristic unusual dorsal fin, which starts from the middle of the back and ends at the tail, and it is not solid, but as if dissected (for 15-20 vertebrae there is one such fin). All parts of it can rise and fall at the request of the fish.

The pectoral fins have two diverging bones separated by cartilage. With their help, the fish can cross the river bed and rest, using them as supports.

Types of polypteruses

Senegalese. He is the most active, curious and persistent among others. Body sizes do not exceed 30-40 cm. Friendly in relation to their relatives and other large fish.

Congolese (Ornatipinis). Very beautiful, bright and patterned. The main background of the body is gray-brown with a white marble pattern, the belly is white-yellow, and on the head is a grid pattern. It is also called the marble dragon. It grows up to 40 cm. It can only be seen during feeding. This is a very agile predator, much more aggressive than the Senegalese.

Endlichera. A large, powerful fish, up to 75 cm in size. In the afternoon it is not very active, it moves quite slowly. Requires content in a separate large aquarium and live food.

Delgezi. The color is bright, the size is small (maximum 35 cm), so it is very popular with fans of this kind of fish. Spends the day in the shelter.

Kalamoicht Calabar. It feeds on small fish. If there is the slightest gap, be sure to climb through them.

Wixia. This is perhaps the largest species. The size of his body reaches 90 cm.

Let's briefly go over the most popular ones.

Polyperus Senegalese

Polypterus senegalus, gray polyterus, Senegalese dragon are all names of this fish. It is often confused with eel, but it is a completely different look. It was found in Africa and India, in Senegal in the Nile River Basin, in the Niger and the Gambia. He loves shallow and without water currents, thickets of plants and shelters in the clayey shore.

This is a predator. In nature, it reaches a size of 70 cm, in an aquarium - no more than 40 cm. The body color is monochromatic, silver-gray with a tint of blue. There are albinos of marble-white color.

The body is elongated and covered with scales, similar to diamonds. The pectoral fins are in the form of fleshy appendages, the dorsal has a hard spike, to which 5-18 soft rays similar to a comb or a saw are attached. Oval fin tail. Abdominal heavily displaced to the anal, almost to the tail.

Has poor eyesight, but good sense of smell. Nostrils pronounced. Sharp teeth and big cold eyes complete his portrait.

What should be an aquarium?

The Senegalese dragon is unpretentious, but he needs systematic care. Aquarium will need at least 200 liters. There must be a lid on top (tight, but with holes) and it is better to seal all the extra gaps, since the polyterus can crawl out, fall out and die on the floor from drying out.

Most of the time fish spends in the lower layers of water in search of food, occasionally rising to the surface for breathing. Access to the air must be, otherwise the dragon will die!

Water parameters are best maintained in such ranges:

  • 24-30 degrees of heat
  • acidity 6-8,
  • rigidity 3-18 °,
  • filtration,
  • weekly substitution.

Decorate a reservoir allowed grottoes, stones, snags. Plants can be planted, and you can do without them. With decent care, Senegalese can live up to 10 years.

Feeding the Senegalese Dragon

From food prefers live food:

  • shrimp
  • squids,
  • earthworms,
  • small fish
  • pieces of beef, etc.

Dry granulated food and flakes can also be consumed. Adults need to be fed 1-2 times a week.

At a young age, dragons swim in flocks, but as they grow older they prefer loneliness and personal territory. It is not necessary to lodge them with small fish, as they will surely eat the latter.

As neighbors are well suited barbs, cichlids, akara, astronotus (similar in size).


Polypterus can multiply from July to October. Sex differences are implicit.

  • Male spatula anal fin.
  • In females, the head is slightly wider.

The fish choose a mate for themselves, swim together for several days, touching bodies and nibbling on their fins. Then the female spawns. For this process, it is better to lay Javanese moss in advance.

Caviar must be removed so that parents do not eat it. The fry are aggressive, they need to be sorted by size. For offspring requires powerful aeration and frequent changes of a small amount of water.

A week after the appearance of the babies, they begin to be fed with nauplii of artemia. And when they grow to 5 cm, care is carried out as adults.

Polyperus delgezi

The most popular of all types of polypterus, as it has a bright color in combination with small size (no more than 35 cm). From above it is olive-gray and with dark stripes across the body, and from below it is yellowish.

All sides are covered with dark spots. Males are brighter than females. His nostrils are tubular, and his eyes are small. Caudal fin pointed.

Aquarium parameters

For this type of polytrusion, an aquarium of 300 liters will suffice. The height is not critical, but it is not necessary to take too high. As for the previous view, special attention should be paid to the cover and openings from the equipment hoses.

The pond can be without decor, but then it looks less impressive. As decoration, snags, stones, and caves will do. If plants are planned, it is better to take mosses and specimens with hard leaves.

The conditions of detention are similar to the Senegalese polypterus. Particular attention should be paid to good filtering. We also add that the lighting does not play a big role. It will be enough and twilight. You can additionally install a pair of lamps of the bluish spectrum to turn on at night when the main light is off.

What to feed delgezi?

Delgezi feeds are searched for by smell, moving slowly and picking it up from the bottom. Therefore, the ground should be selected so that it was easy to care for (recommend a thin layer of sand).

It is better to select food with sufficient protein content:

  • mussels
  • shrimp
  • fry,
  • small fish,
  • beef heart.

It is allowed to give flakes, tablets and granules, but surely sinking.

Captive breeding

Getting offspring in a home aquarium is quite difficult. For successful spawning, it is recommended to increase the temperature of the water, make it soft and slightly acidic.

The female lays her eggs in the cup, which the male builds from the caudal and anal fins, and then she scatters her on the plants with small leaves. Parents are deposited.

After 3-4 days fry appear. Feed them begin in a week with a microcatch and nauplii of artemia.

Polyperus Endlicher

The homeland of this species is Cameroon, Nigeria, Mali, Sudan, South Africa, etc. Its representatives live both in rivers and in wetlands.

The size of the endlicher is quite impressive: in nature up to 75 cm, in an aquarium up to 50 cm. About 10 years live in captivity, but there are known cases of longevity.

The body of these polypteruses is long, brown in color, with dark spots. The pectoral fins are large, the dorsal resembles a dentate ridge and smoothly passes into the caudal.

Aquarium for fry take from 100 liters, for adults - from 800 liters. The conditions of detention are similar to the previous ones:

  • maintain the temperature at 22-27 ° C,
  • pH: 6.0-8.0,
  • hardness: 5-25 ° H,
  • the ground is sand.

From plants you can plant echinodorus or nymph, which have wide leaves and will create a shadow. It is better to plant them in pots or cover them with roots at the roots. Penumbra and the presence of shelters will prevent stress in fish.

They eat slowly, looking for food for a long time.

As for the neighborhood and breeding, there are no big differences from Senegalese and Delgezi, so we will not repeat.

Polyterism conditions

After analyzing all the information about the three types of multiviews, we can summarize the following:

First of all, These fish are hardy and picky enough for their living conditions. Они могут со временем научиться узнавать хозяина и брать пищу у него из рук.

Во-вторых, оптимальные условия для полиптерусов таковы:

  • просторный аквариум,
  • температура 22-30 градусов,
  • жесткость не более 20 градусов,
  • кислотность в диапазоне 6,2-8,5,
  • good filtration, aeration and weekly water changes are required,
  • plants and bright lighting are optional, but shelters should be.

Thirdly, you can feed both live and dry or frozen food.

Compatibility with other fish

Juveniles can be kept in groups. It’s better not to experiment with adults.

Sucking soms should not be hooked, as they will irritate polyterus with their habits. Sometimes incidents happen when domestic dragons can bite fish larger than them, but this is due to poor eyesight.

What are polypterus ill?

This happens very rarely and only because of the wrong conditions.

Overfeeding leads to fish obesity. Rare cleaning of the filter in small aquariums leads to ammonia poisoning. All of this is superimposed with secondary bacterial infections that lead to the rump of the scales.

Monogenees. Drowsiness, poor appetite, frequent ascents to the surface for breathing, inactivity and lying on the bottom are all signs of this disease. On closer examination, on the body and especially on the fish’s head, one can distinguish the monogenies themselves, which are light with a dark pattern of worms. The disease develops rapidly. Treat her with azipirin.

Multipers may be carriers freshwater leeches. This applies only to fish caught in nature. Quarantine for them (before settling in the aquarium) is required.

In conclusion, I would like to say that polyterus is still an amateur fish, and is more suitable for advanced aquarists than for beginners. A large aquarium is not easy to maintain. In addition, the home dragon can peacefully coexist far from all the fish. Yes, and to observe this is not a very interesting object, since most of the time he spends in shelters or moves along the bottom in search of food. But if you still decide to settle this dinosaur in your tank, then go for it!

Video about polyterus fish:

Sea Dragon - a dangerous poisonous slave that lives in the Black Sea

One of the most dangerous and poisonous fish of the Black Sea is the sea dragon. Snake fish, scorpion - this unpredictable predator carries such nicknames. Despite the fact that he prefers to track down his prey at a depth of about 15-20 meters, there are cases when people suffered from its poison on the coast itself. Small and inconspicuous, the sea dragon has a powerful weapon - poisonous needles, so you should know what it looks like to avoid unpleasant injury.

Appearance of a predator

The fish has an elongated body, its length reaches 40-50 cm. It weighs very little - within 200-300 g. Surely you are familiar with the usual bull-calf. The predator in question is very similar to him. His torso is slightly flattened laterally. The lower jaw protrudes beyond the upper one, the eyes are high on the head, this allows it to effectively hunt. The mouth is filled with shallow teeth that are razor sharp. The color of the fish may differ depending on the halo of its habitat (from brown to gray), the belly has a lighter shade. The body of the predator is spotted with specks and stripes. Two sharp dorsal fins and several ventral fins are located on the throat and directly on the gill covers - this is what a sea dragon looks like. The Black Sea, which we consider safe, has become home to this poisonous fish.


Despite the fact that fish prefers to hide in the depths of the sea, it often hunts and breeds in shallow water. Sea dragons prefer to choose shallow bays or bays, where you can bury yourself in silt or sand. Hiding in the ground, they look for the victim and lead a rather passive lifestyle. But such slowness is deceptive - as soon as a fish sees a victim, it can instantly jump out and grab it or thrust its poisoned spike into the poor fellow. There are cases when the predator was conveniently located in the zones of low tide, so that people just stepped on it. Yes, and its similarity with the usual bull-calf can be confusing - this is how the sea dragon disguises.

Dangerous attack

Although the fish prefers to lead a calm and measured lifestyle, if necessary, it attacks with lightning speed. A person does not have time to do anything, although the fish warns of danger: the "dragon" straightens the dark fan of the fin, which is located on the back. All the rays of this weapon are equipped with needles that are impregnated with poison. An additional poisoned spike grows in a predator on the gill cover. When attacking, the fish tries to grab its prey with its teeth, and if this is not possible, it stings with poisoned tweaks and waits until the prey loses control of its body. On the sharp ledges of the fins there are grooves that are generously supplied with poisonous glands.

Surprisingly, even a dead fish can poison its prey - the poison is active for another 2-3 hours. The sea dragon does not specifically attack people - everything happens by chance. You can step on it or grab it, especially the risk of fishermen who take it in their hands, not knowing that the poison is very toxic. Therefore, it is necessary to know what a sea dragon looks like. The photos presented in our article will give you an idea of ​​its main differences from other predators.

The consequences of an unpleasant meeting

A sea dragon is a dangerous fish, and the consequences of contact with it can be very unpleasant. Even fatal. When the spike pierces the skin, the predator throws toxic poison into the blood. The injection is very painful, the wound acquires a bluish color. A person experiences a very strong pain that spreads over the injured limb. There are cases when paralysis of the arm or leg occurred. The temperature rises sharply, and you may experience difficulty breathing, dizziness, nausea and vomiting. A person often suffers from pain for several days. An urgent need to consult a doctor! There is a serum that neutralizes poison. If you do not enter it, the patient may even die. It all depends on whether the victim has met an adult fish or a small one.

How to behave when the injection "dragon"

If you are not lucky enough to be the target of a fish attack, you should follow some simple steps:

  • Suck the poison vigorously for about 10 minutes. Do not be afraid that the toxin enters the blood through the mouth - the bactericidal properties of saliva neutralizes it.
  • Treat the wound with a strong solution of potassium permanganate or hydrogen peroxide.
  • Apply a sterile dressing to avoid additional infection.
  • Seek assistance from the hospital immediately.

If you do not perform these activities, you risk getting complications from such an injury - there are cases when ulcers appeared at the puncture site that did not go away before 3 months. This is such an insidious predator - the sea dragon. The fish has a perfect defense mechanism against enemies.


Relaxing on the beloved beaches of the Black Sea, we don’t even think about such close proximity to poisonous fish. But you need to be very careful and careful with the marine inhabitants:

  • Never try to catch an unfamiliar fish.
  • Do not rummage around the seabed.
  • If you see a crevice in the rocks or pitfalls, do not put your hands there. "Little dragons" love to relax in such places.
  • At low tide, walking along the shore, look at your feet.

Dear travelers and tourists, remember that you must always be vigilant, because we are invading the possession of marine inhabitants, so we must be careful. Take care of your health and study fish that can cause you serious harm.


It is believed that the most unpretentious, inexpensive and "lazy" hobby - aquarium fish. They do not make noise, do not stain carpets, do not spoil the furniture. They need a minimum of attention. But if in your aquarium floats Arovana, there will be a lot of trouble. Yes, and cost you so much fun will be expensive. After all, this is the most expensive fish for the aquarium in the world.


Arovana Dragon fish Monkey fish

Aurova in nature lives in tropical waters of South America, in rivers and lakes of Australia, in many Asian regions. In some countries, the meat of this fish is considered delicious. Perhaps for this reason, its number is reduced.

Arovana red in Feng Shui is considered a symbol of wealth and power. Asians believe that it brings good luck in business. This fish is a descendant of dinosaurs. Other names are known for arovan - dragon fish (because it has large, shiny scales in a special way) and monkey fish (it grabs food, jumping out of the water to a height of 3 meters).


Aquarium dragon fish can grow up to 120 centimeters in length, although in most cases it does not grow more than a meter. It grows very quickly: by 20 - 30 centimeters in six months (some varieties and even more).

It has an elongated body, a cone-shaped tail. There are antennae on the lower lip of the fish. Arovana has no teeth, as it refers to primitive fish, whose evolution has long been completed. Catching a fish, insect or crustacean, she swallows it.

Arovana easily tolerates bondage. Her unusual behavior is noted: she can recognize those who feed and care for her. It is believed that this fish has the beginnings of intelligence.


Varieties are arovan

Breeders offer about 200 species of arovan. They differ in color, shape of body, shape and size of scales, as well as price. It is worth Arovan from $ 6 (for wholesalers) to 10,000 (and some up to 50,000) dollars.

There are subclasses based on the shape, size, style of the fins, etc .:

  • Red Asiatic Arovana;
  • Gold Asian;
  • Redtail;
  • Malaysian Gold;
  • Green Arovana;
  • Australian or pearl;
  • African;
  • Arovana silver;
  • South American black arovan.


Compatible with other inhabitants of aquariums

Ideal - keep arvanova alone in the aquarium. You can not place in the same tank two or more of these fish. They are very aggressive towards each other. No matter how much feed they have, they will distort each other. Only fry content is possible together.

Although, Arovana can live with other large fish, for example, with parrot fish, with angelfish, with catfish, etc. But you need to feed the fish regularly, avoiding its hungry state. In this form, she will throw at all that she can swallow.

Content, feeding and care

The fact that Arovana has managed to survive for millions of years speaks about her endurance. She is extremely unpretentious. The only important condition for its maintenance is a large aquarium, not less than two hundred liters. And from above it is desirable to cover it with plexiglass so that the fish do not jump out.


The water in the aquarium should be warm - 24 - 28 degrees. Neutral acidity or low acid water will do. Alkaline water should not be used in an aquarium; it can make it sick from this arovan, and her eyes will get dark. The high concentration of nitrates and nitrites causes a characteristic disease in the dragon - bending of the gill covers. The optimum water hardness is 1–8 mg-eq / l.

Aquarium decor and equipment

In the water as decorative elements you can place small stones, snags. In addition to the content of the fish need external biofilters and ultraviolet sterilization. The level of ammonia in water depends on them.

To care for the aquarium, where this fish lives, you need uninterruptible power systems, heating lamps.



Feeding arovan of different origin is slightly different. So, Arovana from South America prefers eating live fish. At home, they are taught to eat meat, dry insects, or fish food.

Arovanian Asiatic and Australian eats insects flying above water or floating on it. She can also eat small fish, shrimps, etc. Fish can take food from your hands.

In the diet of dragon fish you should definitely include vitamin supplements. Feeding adults are made once a day. But the fish feed absorbs in large quantities.

Breeding are arovan

At home it is not easy to plant arovan. Will need a two-meter aquarium. Sexual maturity in arovan comes to the 4th year of life, when the fish reaches half a meter in length. Readiness for spawning can be judged by the appearance of red spots on males during mating games.

Arovana female produces about 200 eggs, which the male catches by mouth. For two weeks he has caviar. But even then, at any danger, the fry dive into the father’s mouth. They become more independent after 1.5 months.

Usually this fish is bred in the factory. Manufacturers for spawning are placed in large pools with a depth of 0.5 m. From above they cover the pool with a net so that aravana does not jump out. The aquarium is shaded by the rays of the sun.

Breeding requires water with a natural pH value: 6.5 - 7.5. The water temperature is about 30 degrees. For manufacturers, a special diet is used: nutrition is diverse and high in protein. This is meat, shrimp, fish. Extra dry protein is given.

The content of arovanas is an expensive pleasure. So, some owners are taken to correct the inherent feature of the fish: its right eye looks down. Such a cosmetic operation costs a fortune. And the feed will have to spend more than family food.

Dragon fish or Corynopom

Dragon fish or Corynopoma riisei

Water for content: 21-24 ° С, dH up to 25 °, pH 6-7.8.


Homeland - Venezuela and Father Trinidad.

The body is elongated, strongly flattened from the sides. Upper mouth. The tail fin is two-bladed. Fish length up to 7 cm.

Color: body almost transparent, back slightly greenish, sides with bluish or violet tint. Fins pale yellow. There are albinos.
The dragon is a schooling, peace-loving, mobile fish, keeping in the upper and middle layers of the water, they like clean, clear water and good lighting.

Feeding aquarium fish must be correct: balanced, diverse. This fundamental rule is the key to successful keeping of any fish, be it guppies or astronotuses. Article "How and how much to feed aquarium fish" talks in detail about this, it outlines the basic principles of the diet and feeding regime of fish.

In this article, we note the most important thing - feeding fish should not be monotonous; both dry and live food should be included in the diet. In addition, you need to take into account the gastronomic preferences of a particular fish and, depending on this, include in its diet ration either with the highest protein content or vice versa with vegetable ingredients.

Popular and popular feed for fish, of course, are dry food. For example, hourly and everywhere can be found on the aquarium shelves of food company "Tetra" - the leader of the Russian market, in fact, the range of feeds of this company is striking. In the "gastronomic arsenal" of Tetra are included as individual feeds for a certain type of fish: for goldfish, for cichlids, for loricarids, guppies, labyrinths, arovan, discus, etc. Also, Tetra has developed specialized foods, for example, for enhancing color, fortified or for feeding fry. Detailed information on all Tetra feeds, you can find on the official website of the company - here.

It should be noted that when buying any dry food, you should pay attention to the date of its production and shelf life, try not to buy food by weight, and also keep the food in a closed state - this will help avoid the development of pathogenic flora in it.

Category: Aquarium Articles / AQUARIUM FISHES | Views: 3 357 | Date: 03/15/2013, 10:35 | Comments (2) We also recommend reading:
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How to care for axolotl - water dragon

Axolotl (Axolotl), or the Mexican water dragon, an amphibian of the family of Ambystomaceae caudate, is a neotenic larva of the ambist of certain species. This creature is surprising in that it reproduces before it reaches puberty.

Being a larva that has not undergone serious metamorphosis, the axolotl has a developed thyroid gland, which is not able to produce a sufficient amount of growth hormone. However, by moving the Mexican dragon to a dry and cool place with a low water level under domestic conditions, it turns into an adult (amby).

Metamorphosis can occur in a few weeks, accompanied by the gradual disappearance of the external gills, change in color and body shape. Axolotl, the maintenance and care of which in an aquarium requires a special approach, is very vulnerable in the process of growing up. The fact is that without consultation and support of the herpetologist, the creature may die during the period of maturation.

From the Aztec language Axolotl translates as "water monster" or "water dog." Externally, it resembles a tadon with three pairs of external gills protruding to the sides. The fantastic animal lives in the waters of the lakes Xochimilco and Chalco (Mexico) in the Chinampas areas, however, due to the rapid urbanization, its range is reduced. He was listed in the Red Book as an amphibian, which is under threat of destruction.

Before the invasion of the Spaniards in America, the Aztecs consumed the meat of axolotl, considering it to be curative. It is easily reproduced at home, therefore it has a scientific value. An interesting fact is that axolotls can regenerate gills, tail and limbs. In captivity, they brought as many colors of a Mexican animal as a lover of aquarium inhabitants would like to see.

Observe the life of the axolotl in the aquarium.


The aquarium Mexican dragon lives in the wild at an altitude of more than 2000 m above sea level.Externally, it resembles a large salamander from 9 to 35 cm long, from the muzzle to the tip of the tail. Males have a longer tail than females. The head is large and wide, slightly disproportionate to the body, the eyes are small, and the mouth is wide. Like all the larvae of the amphibians, they are predators.

Ambystomas exist in two forms - neotenic with external gills and ground developed with smaller gills. It has three processes on the sides of the head - these are the gills. There are small teeth in the mouth that serve to hold food.

Body color can be both white and black, with a gray-brown and brown color. Light colored axolotls are more vulnerable in the wild, therefore they are rarely found there. They are bred in an aquarium.

How many years do they live? According to studies, the life expectancy of such pets is about 20 years, and in captivity, where proper care is 10 years.

Can I keep at home?

How long will the water dragon live if you keep it at home? An aquarian lifestyle can be detrimental to such an animal if it is not properly cared for. You need to feed him properly, he also fits a low temperature and more than 40 liters of water in the aquarium. If we take into account all the wishes of the Mexican dragon in keeping him in captivity, he will live a long and happy life.

Axolotls can live in an aquarium with a volume of 50-100 liters (from 50 liters per individual). Equip the aquarium with snags, large pebbles, pots or coconuts. The skin of the Mexican salamander is very delicate, so as not to damage it, you should remove pointed objects.

The first and important point is the temperature. How many degrees are optimal for water? Increased temperature - their worst enemy, as for any amphibian. In the wild, they live at a height, so the usual water temperature is below 21 ° C. Temperatures above 24 ° C can lead to illness and death of a pet. Relatively warm water contains little oxygen, should be allowed to aerate the aquarium. The boundary temperature is 23 ° C. If you are not sure that you can keep cold water in an aquarium, then it is better to leave the idea of ​​acquiring an axolotl for later.

The content of these creatures is possible in very pure water, free from chlorine, with a neutral pH level and medium hardness. The water should be with a slow flow, the internal filter of the aquarium is required - powerful, preferably with a washcloth. Change the water every week.

Without aquarium soil, he will be uncomfortable - because there is nothing to cling to, which will lead to ulcers on the tips of his paws. Axolotl gravel is swallowed, which can cause death. Ideal option - aquarium sand.

Compatibility with other inhabitants of the aquarium

Experienced experts advise keeping them separate from other animals, and there are a number of reasons for this:

  1. The outer gills of the Mexican dragon can be the object of predatory attacks of fish, as a result they are badly damaged.
  2. Axolotl active at night, so they can attack and eat sleeping fish.
  3. It is difficult to find a creature that could come as a companion (some are too large, others are too small).
  4. Axolotl should be kept separate from each other or equal in size: adults or larger individuals can eat smaller ones.

Watch a dragon dance to classical music.

The only exception is goldfish. If you feed them well, they will not be bothered by the axolotl, and besides, they can live at a low water temperature.

Before you choose food for axolotl, you need to familiarize yourself with the features of feeding. It is forbidden to feed them with by-products from the meat of warm-blooded animals and fish food. It is better to feed with sea-frozen seafood cocktails, earthworms, cherry prawns, raw sea fish-hake or cod, mussels or small live fish (guppies, danios, neons). You can not overfeed and leave food residue at the bottom of the aquarium.

The important point is that the axolotl has no bones, instead of them there is cartilage tissue. You should not touch them unnecessarily, it is better to do this when absolutely necessary with the obligatory use of a soft cloth net.


To breed Mexican salamanders is simple. It is easy to distinguish the male from the female by the cloaca: it is convex in the male, and almost invisible in the female. The main mechanism is a change in water temperature, animals feel it perfectly, so reproduction can occur naturally. You can independently stimulate the "courtship" by slightly raising the temperature of the water and reducing the length of daylight hours. Then again increase the day and lower the temperature. During reproduction, the male releases spermatophores, which the female collects in the cloaca. She lays fertilized eggs on aquatic plants. Then the parents can be transferred to a separate aquarium.

After 2-3 weeks, the larvae will appear, similar to fry of fish. Their first food is daphnia, a micro-worm, nautilles of artemia. Later they can be transferred to adult food.

Now you know how to care for the axolotl. These are cute animals that create an incredible impression with their appearance and lifestyle. Rare in nature, they can settle in your home, bringing with them an exotic tale of the underwater world.

See also: Shark Balu - the sharpest of the barbs.

Polyperus Senegalese or mnogoper - a dragon from African waters

Polypterus Senegalese (Polypterus senegalus) or the Senegalese polyperer looks like it came from a prehistoric period, and although it is often confused with eels, it is actually a completely different kind of fish. Just by looking at the Senegalese polypterus, it becomes clear that this is not a cute fish for a common aquarium. A divided dorsal fin, similar to a saw, perfectly expressed teeth, oblong nostrils and large, cold eyes ... you immediately understand why this fish is called the Senegalese dragon. Although it does resemble something of an eel, it does not have a related relationship with it, the Senegalese polytusa has its own unique properties.

Habitat in nature

Polyperus Senegalese is a native of densely overgrown with vegetation, slow-flowing reservoirs of Africa and India. It is very common in this region, so much so that it is even found in roadside ditches. These are pronounced predators, they lie and wait in the midst of dense aquatic vegetation and in muddy water, until the heedless prey itself arrives.

Polypteruses Senegalese grow up to 30 cm in length (in nature up to 50), while they are aquarium long-livers, life expectancy can be up to 30 years. They hunt, focusing on the smell, and for this they have long, pronounced nostrils to catch the slightest smell of the victim. For protection, they are covered with thick scales (unlike eels, which have no scales at all). Such strong armor serves to protect polypteruses from other, larger predators, which are abundant in Africa.

In addition, the Senegalese swim bladder turned into a lung. This allows it to breathe directly with atmospheric oxygen, and in nature it can often be seen rising to the surface after another sip. Thus, Senegalese can live in very harsh conditions, and provided that it will remain wet, then even out of the water for a long period of time.
Now in aquariums, albino is still common, but it is no different in content from an ordinary polypterus.

Senegalese Polypirus - Albino

Content in an aquarium

Senegal polyterus is an unpretentious fish that can live in very different conditions, but this does not mean that care is not required. First of all, this resident of the tropics needs warm water, about 25-29C. Also, it grows quite large, up to 30 cm and needs a spacious aquarium, from 200 liters. This is one of the few aquarium fish for which a tall and narrow aquarium is suitable, since the polyterus has developed primitive lungs that allow breathing atmospheric oxygen.

As mentioned above, he needs to climb to the surface of the water to breathe in, otherwise he will suffocate. So for the content of the Senegalese polypterus, it is necessary to provide free access to the surface of the water. But, at the same time, mnogoper is very often chosen from an aquarium, where it is doomed to a slow, painful death from drying on the floor. It is very important that every slot, even the smallest hole, where wires and hoses pass, is tightly sealed. They can climb through holes that seem incredible.

It is advisable to use the soil as it is convenient for you to clean, since the multi-feed is fed at the bottom and a lot of waste remains. It is also necessary to arrange a sufficient number of shelters. Plants are not important for him, but they will not interfere either.

Compatible with other fish

Although the polyterus is a Senegalese pronounced predator, it can get along with many fishes. The main thing is that they were the least similar to the victim, that is, in size were not less than half of the polyterus. It is best to contain polypterus groups with other African species, for example: a butterfly fish, synodontis, apteronotus, and large fish, such as gourami giant or shark barbs.


Multiple Senegalese unpretentious in feeding and there is almost everything, just to be alive. If the fish is too big to swallow it, he will still try to do it. That is why neighbors in the aquarium should be at least half the length of the polyterus. Adults can be fed once or twice a week.

Fortunately, you can feed it with other feeds. Granules or tablets that fall to the bottom, live, frozen, sometimes even flakes, it is not capricious. If you feed it with artificial feed, the predator instinct decreases, allowing you to keep it with smaller fish.

Good appetite:

Gender differences

It is difficult to distinguish a female from a male from a Senegalese polypterus. Experienced aquarists are distinguished by a thicker and more massive anal fin in the male.


Extremely complex and rare, individuals coming to the market are usually caught in nature. Because of this, new fish need to be quarantined.

Dragon Arovana Fish: Feng Shui

Arovana is a tropical beautiful fish. It grows very large, up to 100 centimeters, has large scales. It has several species, they differ in color, in fins, additional stripes. All of them are valued and considered fish of good luck, happiness, wealth and health. She has been known for so long that she managed to acquire many legends and myths.

Ever since the times of the Jurassic period, the remains of Arovan have been found, and to this day it has survived as a separate species. Basically, it is grown specially, in the natural environment there are very few of these wonderful fish, according to some sources there is a version that Arovana is already an endangered species.

Arovana looks like a dragon, because it has beautiful large scales like a dragon, similar antennae, when it swims, it bends like a dragon, and they have something in common in the structure of the body. Everyone knows that in China and Asian countries the dragon is almost the most sacred animal, some even worship it, and therefore they call Avanu a dragon fish.

The adult dragon fish Aurovana is not cheap at all, we are talking about gold Arovanah, its most valuable subspecies. Their price exceeds 100 thousand rubles. In order to grow it requires the work of many professionals.

In the rarest species, after growing up, when it reaches 14 cm, the chip is implanted with all the information about its pedigree, the assigned identification number and other important information, and it is clear that such a fish is not cheap. Many Aovan has a certificate of quality, he says that the fish is healthy, has good genes and will live a long time, delighting its owners. But the service process of Arovana also requires the necessary expenses, the services of specialists, cosmetologists and others will be required.

The fish of Arovan Feng Shui theory is also considered sacred and beneficial. It is believed that if the aquarium with this fish will be in the office or at work, the fish will bring money and benefits. Very often you can see huge aquariums in large stock offices, where Arovana swims beautifully.

The aquarium itself is already a symbol of well-being, it is recommended to be placed on the north side of the room, opposite the fire symbol, possibly a fireplace. In Feng Shui, everything is good in moderation, and if the apartment or house is too small, then you should not put an aquarium with Aarovana there, because it certainly cannot be small. After all, the main thing is harmony and general balance. Better to hang a picture of this sacred fish.

Black Dragon fish: description and photo

The planet is inhabited by many predators, including fish. The black dragon, which can be considered in this article, is striking in its ferocity. These fish, though small, but very rare. Meeting them is not so easy, because they live in the water column at a depth of two kilometers. They began to study them not very long ago, as equipment did not allow earlier.

Where dwells

Black dragon - deep-sea species, it is found in the Pacific, Indian and Atlantic oceans. This fish is from the Idikant family. It is adapted to dwell at the bottom of the oceans. These dragons live at a depth of 1000 to 2000 meters. This predator has several varieties, but they all look alike.

What does the Black Dragon look like?

The fish got its name for the coal-black color and very sharp teeth. Her body is long and narrow. The black dragon scale itself is absent. Despite its small size, it is a very ferocious predator. Their average length is 16 cm, the maximum is 50-60 cm. These whelps, though small, are very aggressive.

Under the eyes of a dragon there is a small source of red light. It perfectly illuminates the fish path, and at the same time remains invisible to many deep-seated inhabitants. Just the eyes of the latter are unable to catch this radiation.

These fish have a rather large head and mouth with sharp teeth. On the chin there is a long mustache, and on its tip is a "fishing lure" - photophore. The dragon, seeing the sacrifice, begins to swing it and blink. She, unaware of the predator, calmly swims up and finds herself in the mouth. The entire body of the male Black Dragon is also covered with photophores, with which it attracts the female during the mating period.

Why do fish shine

Many deep-sea inhabitants use bioluminescence, the Black Dragon fish is no exception. Simply put, they have a special body called photophore. It is thanks to him that the light is produced. Thanks to the photo light, they not only lure the prey and mate, but also use it to communicate with other inhabitants of the underwater depths.

Dragon males

They differ significantly from females. The Black Dragon fish, male, has very few teeth. In addition, the size of the latter is two times smaller than that of females. They have no characteristic mustache on the head. But photophore is well developed, occupying a third of the head. Reaching puberty, males practically stop feeding, their intestines start to atrophy, and they just drift in the water. At this point, they are engaged only in that they are trying to attract females to mating. After a successful "marriage union" males live only two weeks and die.

Black Dragon Fish: Females

They are not only much larger than males, but can even grow up to half a meter. Females are considered to be predators, because they have a mouth planted with curved sharp teeth. The fangs are so large that the jaw of the fish does not close. Purple and golden photophores are also scattered throughout the females' bodies. Their lifestyle is different. In the daytime they adhere to the depth. And with the onset of darkness, unlike males, they rise closer to the surface in search of food. Due to the structure of the jaw and a very elastic and well-stretching stomach, they can swallow the whole fish even much larger than themselves.

Black Dragon Larvae

They are very interesting and unusual. The black dragon fish, being a fry, reaches 3 centimeters in length, with both sexes looking the same. You can distinguish them at the last stage of maturation. Because of the dissimilarity of fry to adults, they were considered for a long time to be a separate species of deep-water fish. Which is not surprising, since it is rather difficult to study the inhabitants of the ocean. Before growing up, this fish goes through a whole stage of metamorphosis and modifications.

Almost personal horoscope: Dragon-Fish.

What is your zodiac sign? Tell me, and I'll tell you who you are. Boldly, but about the horoscope. Today, everyone is so interested in watching the predictions of stars, which sometimes seems - without their clues and live something will not work. No, the luminaries only suggest - man controls all the same. But here you can’t argue with anything - it’s with some inclinations and peculiarities of perception of reality, which are presented as a gift to our heavenly patrons.

Take, for example, Pisces (in astrology, of course). Everyone knows that this is the oldest and wisest sign of the zodiac. No one can adapt to the surrounding reality as much as Pisces does. And they are precisely tuned, and do not create the appearance, such as, for example, Aquarius. What's on Pisces' mind is incredibly difficult to understand. Even the simplest representatives of this zodiac sign have such a rich and deep inner world that it is strictly not recommended to dive into it without diving skills. There are, of course, the drawbacks of this zodiac sign - although, how to look, probably, this is a drawback from the point of view of "Ovnovskaya" recklessness. В общем, Рыбы не очень-то готовы совершать безумные поступки, которые имеют непредсказуемые последствия. Они вообще за то, чтобы всё шло по плану и без особых рисков. И символ у Рыб - разнонаправленный, отслеживающий врага со всех сторон. Оно, в общем-то, и объяснимо - нет у этого знака зодиака рогов, копыт или, на худой конец, лука или хвоста - вот и приходится страховаться, а не обороняться.

А нынче на дворе у нас год Дракона. Interestingly, what adjustments does this mythical and by no means logical creature make to the character of successive Pisces? Astrology says the opposite: Pisces changes the character of the Dragon. The horoscope Dragon-Fish describes a person who is bright, impressionable, accustomed to shine and achieve all his plans - this is inherent in Dragons. On the other hand, the Dragon-Fish horoscope speaks of a wise, reserved man - this is from Pisces. Thus, calm sea creatures conquer the unbridled nature of the mythical character, thereby changing the entire horoscope. Dragon Fish seeks to know the unknown and share its wisdom with others. They are magnificent teachers who give their whole lives to the service of their chosen goal. Born in the year of the Dragon Fish, they know very well how to achieve their plans, use for this the charm and charm of the patron of their year of birth, as well as the wisdom and calculus of Pisces.

And now love horoscope. Dragon-Fish must carefully consider the choice of its partner - it must be a person who is able to understand him and support him in difficult times. After all, as we know, the weak point of the Dragon is its emotions, for Pisces the spiritual sphere is also a leading one. The best partners can be the Rat and the Rooster - these signs can be content with a minimum of attention of the Dragon during the periods of its searches and doubts, but will provide support in case of failure. Wise Pisces will be able to find such a partner who will need all the manifestations of their personality, and if the Dragon, as a rule, does not realize its need for those who are close, then Pisces will be able to honestly arrange everything for themselves on the shelves, and never will go to a dubious alliance with the Monkey, capable in case of failure, just make fun of the partner.

The current Year of the Dragon for Pisces will not be easy. We'll have to quickly navigate the situation, make non-standard decisions. The year will spell success ultimately in all directions - both in personal life and at work, but there will be a lot of excitement. So, in the spring debriefing in matters of the heart is possible - in the end, a complete breakdown can sometimes be called a successful outcome. At work, however, it will be necessary to take several decisive steps that will later determine the fate of a career, perhaps for years to come. Since the Year of any character for the Dragons is difficult but fateful, then, summing up both predictions, we boldly give advice to the Dragon Fish: leave the safe Great Reef, rush into the ocean and carefully look around - and you will definitely find your happiness!