Dear aquarium fish


The most unusual aquarium fish

For a long time, the man was attracted by the fascinating underwater world, and he learned how to create his mini-model in his home. We are talking, of course, about the domestic pond - an aquarium, in which quite unusual inhabitants often live. Aquarium pets can be distinguished among other representatives of their own kind, not only by the shape of the fins and body or the coloring of scales, but also by non-standard behavior, as well as the functions they perform in the reservoir. On the unusual aquarium fish, adding exotic charm, originality and beauty to the reservoir, we will describe further.

The most expensive pets for the aquarium


The most expensive aquarium fish, according to many experts, is considered the elite representative of the underwater world of Arowana (Arowana) - it’s a dragon fish that can reach a length of 80 cm.

The cost of each individual individual depends on its size and expressiveness of color. The average price of this pet is $ 5000, but there are rare specimens for which aquarists spread up to $ 400,000.

The most expensive type of fish is Platinum Arowana, a white dragon with a platinum shade.

The popularity of Arovan is not least due to the antiquity of its origin - representatives of this species have lived on Earth for more than 200 million years.

Today, the efforts of breeders brought many varieties of this rare fish. Dragons vary in fin shape, scale, size.

Elite species include Arowana of rare shades: platinum, red, gold, purple.

Perhaps because of its exclusivity and the high cost of living in China, it is a symbol of wealth.

Pearl stingray

Potamotrygon Sp. Pearl Ray - another expensive freshwater representative of the aquarium world, a native of Brazil.

It is quite rare in the natural environment, and in conditions of captivity it breeds reluctantly. That is, in fact, this species is very rare, which determines the willingness of aquarists to lay out a few thousand dollars for a pearl ray.

And the cost of fish of a particularly expressive color reaches tens of thousands of dollars for those who like aquarium exotics.

The pearly pet is really beautiful - the golden spots of rounded shape against the dark background of the body of the fish favorably distinguish it from other inhabitants of the reservoir.

Japanese carp koi

It also belongs to the aquarium elite, although not as expensive as the aforementioned species.

This representative of the underwater world has many varieties, the cost of which varies from $ 100 to $ 1500. For the most valuable specimens of Japanese carp lovers are willing to pay up to $ 5000.

In comfortable conditions, koi can reach a length of 50 cm and live for 100 years. But to provide him with such conditions is not easy, as the Japanese carp is very capricious.

In addition, through the efforts of the same breeders in breeding this species of fish, its immunity was sacrificed for its visual appeal. Therefore, the health of koi is very poor, and additional care is needed for this pet in the home water.

However, this does not stop lovers of interior exotic, they install huge tanks and often occupy them with bright Japanese koi.

Top aquarium beauties


Otherwise, Synchiropus splendidus is a bright exotic fish of only 6 cm in size that amazes with its beauty and harmonious combination of its coloring.

The natural habitat of these charming babies is the western Pacific area - from the Japanese islands in the north to the Australian latitudes in the south.

A favorite place to stay Mandarin are coastal reefs and quiet cozy lagoon. They live in numerous colonies, but to meet them in their natural environment is a rare success.

Synchiropus splendidus sink to the bottom and spend all the time there in search of food: small crustaceans, hay-eaters, scuds.

The appearance of a tangerine is truly extraordinary: an elongated body with a rounded, slightly flattened head is covered with smooth, scratchy, motley colored skin. Fish and lips attract with their size, they are too big, but noticeably add to the appearance of the pet.

The name tangerines received its name due to the unusual color of the skin, which looks like the clothes of the imperial tangerines in China.


It is a true decoration of aquariums. In nature, there are only two species of this exotic fish:

  • Symphysodon discus;
  • Symphysodon aequifasciatus.

They are delivered to the aquarium market from the South American continent.

But today they are no longer limited to this - the breeders took the case some time ago. As a result of their activity, the emergence of new species of fish:

  • the Dragon;
  • pigeon blood;
  • red Schillingmann;
  • uniform red and others.

Each of these varieties is characterized by its unique color. The shape of the body of the discus resembles a colored disc (from sand to reddish) with various wavy multi-colored lines arranged in different directions.

A rather large fin on the back is also decorated with wavy lines, and the elegant elongated pectoral and anal shape completes the attractive image of the discus.


Speaking of underwater beauties, it is impossible not to mention the Betta fighting fish (in a different way, the Cockerel). The natural habitat of this aquarium pet is water bodies with stagnant water in Southeast Asia, Vietnamese and Thai slow-flowing rivers with lush flowering vegetation and marshy bottom.

Externally attractive males with beautiful plumage of fins of various shades have truly fighting qualities, for which they received one of their names. This is especially characteristic of males, which individual gambling amateurs are specially bred to participate in combat duels. This kind of matches is collected by many spectators, where there are winners and losers.

If we talk about the appearance of the Betta fish, the natural most common color of her body is dark brown with a lot of green spots. The veil variety of the cockerel of the most varied colors - green, blue, yellow, white-pink, red, less often black - appeared due to the efforts of breeders.

Mostly aquarists appreciate the specimens that have lush one-color fins. Such cockerels are very rare.

Under the conditions of captivity, the life of Bett’s fighting fish is no more than three years.

The aquarium world fascinates with its unusual beauty, prompting many people to engage in aquarism. The numberlessness and variability of species in the underwater world amazes the imagination, and it is sometimes very difficult, if possible, to choose the best from this variety.

The smartest and most expensive aquarium fish

What are the smartest aquarium fish? For most families, keeping a home aquarium is an opportunity to calm down, relax, get relaxation and psychological comfort. Designers often bring an aquarium into the interior to impart a unique design, and psychologists recommend watering pets to achieve psychological balance. However, no one thinks that fish are also distinguished by intelligence. Scientists in the course of the experiments divided them into 2 categories: smart (cichlids, elephant fish, gnatonemus) and stupid (gops).

Smart elephant aquarium fish

Gnathonemus petersii is the Latin name of this pet, which in the course of the experiments was discovered by extraordinary abilities of biologists from the University of Bonn. It turned out that the elephantfish, which is popular among aquarists, is capable of using small electric fields:

  • differentiate material objects;
  • distinguish between living and dead creatures;
  • follow the invisible path.

Floating in an aquarium, this pet holds its head a few millimeters above the bottom surface, leading a peculiar trunk on the head, then to the left, then to the right. This action resembles the work of a metal detector, only an aquarium elephant looks for food in such a way - insect larvae.

The results of a series of experiments by German scientists led to the conclusion that an elephant fish with the help of its proboscis metal detector can accurately orient itself in muddy water or even in complete darkness.

In fact, this natural elephant device performs the function of an organ of vision. With its help, the fish can not only determine that some material object is nearby, but also to concretize its outlines, to see it.

Such abilities of the fish are due to the presence of her:

  • a kind of flashlight - a set of cells on the tail of the pet, which produce electrical discharges (up to 80 times / sec);
  • electrical cameras (about 500 pcs.), which catch the discharges generated by the flashlight.

The coordinated functioning of these natural devices of an elephantfish allows it to capture images of its surrounding objects.

In addition, Gnathonemus petersii:

  • differentiates living beings and objects of inanimate nature, since all of them have different electric radiation power, which affects the field of the fish itself in different ways;
  • easily distinguishes metal objects, which sees brightly, and dielectrics, which weaken her eyesight;
  • pinpoints in total darkness, the distance to the object to which it is approaching.
Comparing the percentage ratio of the brain volume and the body of a man and an elephant fish, scientists state that Gnathonemus petersii wins, and this confirms that it has not a weak intellectual potential.

The origin of cichlids:

For the first time, cichlids were found in the waters of Africa, South America, and Asia, and identified them to perciformes. To distinguish them, you should pay attention to the nasal cavity, it has a couple of holes.

There are also West and East African perch-like migrants from Lake Malawi. They have an unusual color, so they are widely demanded by aquarists, but not only this attracts them. First of all, people acquire such fish due to behavioral and intellectual features:

  1. Individual traits behavior.
  2. The ability to recognize the terrain, place of feeding, the owner.
  3. In the mating season, fish are able to change color. The right to choose a partner remains with the female, but for this they must be kept together from an early age.
  4. Before throwing caviar, the male himself prepares a place for spawning.
  5. Protection fry. Initially, the female contains caviar in the mouth. When the fry hatch, the fish continues to take care of its offspring and occasionally releases them for the feeding period. However, if the female suspected danger, she back gathers offspring in the oral cavity, and hides in a secluded place: a cave or a cave.

In order for an intelligent and intelligent fish to be good in a home aquarium or pond, you should create comfortable conditions for it. To do this, you need to make a large body of water and set up many shelters.

Why aquarium fish nicknamed "Smart"?

The subspecies of cichlids, elephant fish, and gnathemus have unusual abilities. They can memorize events for a long period of time. As the experiment showed, they can remember the place where they were fed, and sail there in search of food, after 2 weeks.

Evolutionary advantages, giving the fish the opportunity to remember.

At the end of the experiment, Dr. Trevor Hamilton of the Canadian University in Edmonton, stated the following: "The presence of memory gives the" smart "fish an advantage, that is, they remember where the place of complementary food is and there are no predators, so they return there. have a longer lifespan. "

The course of the experiment.

The essence of the experiment was as follows: the fish of the subspecies cichlids, were allowed into new aquariums and fed in one place. After 3 days, they were transferred to another aquarium and allowed to rest for 12-14 days. After that, the cichlids were returned to the aquarium they were familiar with, and they were followed by their movement with a specially designed program. Research has shownand that once in the familiar territory, the fish quickly found their way and swam to the place where they had previously found food.

At this stage of research, professors who are members of the Society for Experimental Biological
gey "study: can fish memory depend on the environment?

Physiological features of the brain of fish. The conclusion of the experiment.

Previously it was believed that the most active and large brain in humans, however, it is only 2 - 2.5% in relation to body weight, therefore mice, birds or spider-like monkeys significantly outnumber people according to these data, having a brain weight of up to 6.6% and are record holders in the animal kingdom.

Professors from Sweden, conducted research on the African fish gnatonemus and found that with respect to 25 centimeters of body length, it has a brain weight of 3.1%. It turns out this is a lot for their weight class and the brain share, accounting for less than 1% of the total body weight.

Also, the professors compared the figures of animals, humans and gnatonemus fish to the subject of energy consumed by the body, in relation to the size of the brain:

  • Animals - up to 8%.
  • Man - more than 20%.
  • Gnatonemus fish - 60%.

In conclusion, I would like to say that very often we, arrogantly believing ourselves to be the crowns of nature, simply take little interest in our smaller brothers. At the same time, we do not notice that many of them are smart, capable of learning and communicating with us.

The most expensive aquarium fish

The most beautiful aquarium fish

Despite the fact that beauty is a very subjective factor, there is some tendency towards the species preferences of aquarium inhabitants. In other words, some fish appear in houses more often, others are suitable only for some. These observations allow you to create a list of the most beautiful fish.

African Cornflower Haplochromis

African cornflower blue haplochromis is considered one of the most popular cichlids living in the Malawi lakes. Despite the relatively large size (about 17 cm), this fish is quieter than African congeners. There is a variety - Frontoza, individuals of which in captivity can reach a size of 35 centimeters. Therefore, it is necessary to select an aquarium taking into account the number of large individuals. Such fish live in alkaline water and love a variety of shelters (grottoes, algae, houses). However, it is worth considering the fact that, despite the peace-loving nature, they are still predators, so you should choose your neighbors very carefully.


This carp lives in fresh water. Fans of aquaria liked this view thanks to an exclusive, variegated color. The most popular are individuals whose body is painted in red, black, orange and their shades. Thanks to the efforts of breeders and breeding, new shades were obtained: violet, bright yellow, dark green. The more unusual the color, the more expensive the pet will cost. The advantage of this carp is longevity and ease of care.


The most beautiful fish is considered the king of freshwater aquariums. The shades of her body can be very different from each other. In nature, the most common colors are brown. Modern aquarists have already learned to change the color of the fish, so you can find the original copy, though the price for it will not be small. Discus is one of the most expensive representatives of ornamental fish. One fish can cost the owner several hundred dollars. In favor of the acquisition of this fish plays her intellect. She is able to recognize the owner and eat with her hands. Discus prefer fresh warm water in a spacious aquarium. For good maintenance it is necessary to put in the aquarium hard-leaved plants.

Lionhead cichlid

This fish is different in appearance from most fish, due to the huge fat cone on the forehead, which reminds someone of a lion's head. In addition to this difference, it has a complex behavior. Often, novice aquarists take it for the slow and harmless to the rest of the fish. In fact, it can be brisk and very sharp. To catch it from the house for the fish, you have to try hard. It is best to remove all the houses from the aquarium and only then begin hunting with a net. This cichlid has a small size, about 15 centimeters.

Slope Motoro Leopoldi

Having a stingray in your aquarium is the dream of most aquarium owners. True, this exotic will cost the owner in an amount equal to about 2 000 euros. Motoropod Leopoldi will decorate the freshwater home. You can find it only from true collectors and exhibitions. The popularity of the ramp has gained due to its compact size (diameter 20-25 cm). Having a slope in your aquarium, you must be prepared for some of its features, namely:

  • Provide space for bottom movement;
  • Pour soft and loose soil;
  • Follow the rules for feeding bottom fish.

The slope gets along well with the fish that occupy the upper layers. For feeding, you must use fish fillets, insects. Eat this fish can and dry food intended for catfish and bottom fish.


Watching Arvan is very interesting. The fact is that for catching insects, the fish jumps out of the water. The behavioral feature explains the position of the fish eyes, which are located on the top of the head. The price of a graceful fish starts from 10 thousand dollars. Therefore, for most, it remains a dream. There are cases when rich owners performed fish operations to correct eye defects. Such abnormalities in vision are explained by the fact that the fish catches food in the water column.Many who saw her live note her hypnotic influence on a person.

gold fish

Who in childhood did not dream of a goldfish in his aquarium? Not surprisingly, goldfish are the most frequent inhabitants of freshwater homes. Breeders have proved that with the help of modern science, you can change the gold carp beyond recognition, paint it in unusual colors. Real goldfish are large and very mobile. It should be attentive to the nutrition of these inhabitants. A goldfish can eat all the food it will give. Overfeeding can lead to obesity, organ dysfunction.

Som Orinoksky

Another large inhabitant of the aquarium. Egor sizes do not rarely exceed 60 centimeters. The size of the aquarium should be appropriate for this giant animal. But, unfortunately, for breeders, catfish does not breed in captivity, hence the high price for each copy. The main characteristics for which the catfish is so loved, is his ability to communicate with a person and eat all kinds of food. Orinoksky catfish - is very jealous of its territory and perceives floating fish for food, so it’s not worthwhile to settle others near it. Danger to the aquarium with a large catfish can be weighty cobblestones. The force of the tail fin is enough to fold the stone to the side and break the glass with it.

Fish - knife

This fish arrived in aquariums from the waters of South America. See how actively she frolics in the pond is not easy, since she is nocturnal. In the daytime, the fish prefer to relax in the dark thickets. Fish refers to carnivores. In order to catch food at night, her body has electro-receptors, which are ways to catch light vibrations of electromagnetic fields. An amazing feature of this fish is the ability to swim both forward and backward. Until recently, it was believed that to get offspring in captivity is impossible. The idea of ​​breeding turned our fellow, aquarists from St. Petersburg.


Panak original and original. The appearance of the catfish is similar to its distant ancestors. In the oral cavity, he has a special organ that looks like a scraper. With it, Panak easily removes plaque from the aquarium decor, glass. The suckers on his body are so strong that he can easily stick on a snag back down and stay in place. With such catfish you need to be very cautious. Sneaking into the scenery, he can get stuck in narrow traps and die. In general, Panak is a good neighbor. He rarely attacks fish of equal size.

Hybrid parrots

Amazing fish, whose head is similar to funny colorful birds - parrots. The fish received by the efforts of Asian breeders is loved all over the world. About how they managed to create such beauty, ichthyologists are silent. The only information that the public owns today is that the hybrid parrots were deduced from the type of tsichlozom. Like birds, fish have a huge variety of colorings. Asian breeders do not deny that the fish is painted artificially, but do not intend to reveal the secrets of technology. It's a funny fact that those born from dyed parents are completely colorless. Those who settled in the aquarium parrots, note that a special technology of cultivation does not prevent the fish to reproduce naturally.

Queen Nyasa

The African cichlid surprisingly harmoniously fits into the marine aquarium. It has an interesting color and a majestic view. Thanks to these characteristics, the fish was awarded the title of royal personage. The factories note that the most interesting period in the life of fish is mating games. Cyclides have always been distinguished by complex behavior; Queen Nyasa is no exception to this rule. Despite the female name of the breed, males are somewhat more beautiful than females. Their body has an olive color and dark stripes.

Cychloma severum

Severum tsichlomozy is not rarely called the Red Pearl and false discus. There is a deal of truth in it. External similarities with the discus are difficult to deny. An inexperienced aquarist will not be able to tell the difference between them in the same body of water. The body of red pearls is more than the average, but this does not prevent it from remaining peace-loving towards its neighbors. The only exception can be the spawning period, when both individuals begin to fiercely protect their territory. The breed is bred by the efforts of breeders, which is why its coloring is extremely effective.


It is difficult to call this fish beautiful. Its popularity is associated more with the horror and fear that a predator inspires. These fish have gathered around their person a huge number of legends and secrets. Most of them are contrived, but not without logic. The most common rumor is that fish are bloodthirsty and voracious. In fact, one fish eats about 40 grams of meat in a couple of days. It would seem that such fish would never get along with other neighbors, but the practice proves that barbs and harassment are able to survive. Surprisingly, even viviparous and neons remain untouched.

Botsiya clown

Interesting fish, which mainly lives in the lower layers of the aquarium. The fish is very social, therefore it is necessary to settle in the aquarium in small flocks. Botsiya night dweller, so the meal is best done in the evening. This inhabitant will not refuse from various logs, grottoes and shelters. Botsiya clown finds his "house" and does not let anyone go there, so the number of shelters should correspond to the number of special ones in the aquarium. Feed the fish to be bottom feed, because their mouth is located on the bottom.


Ordinary scalar live in fresh water. It is a mistake to compare real scalar with decorative koi rocks. Ordinary fish grow to 20 centimeters. If you put them in an aquarium with very peaceful neighbors, the whiskers located on the bottom can be very long. Breeders and here have made efforts to bring non-standard colors. The common scalar has a silvery tint with dark vertical stripes located all over the body, including the head and tail.

Labero Bicolor

This fish came to aquarists from the waters of Thailand. It is not rare to hear that it is compared with catfish. The point is her amazing ability to swim to the top of her belly. Most often, such a coup is associated with eating food from the inner surface of the sludge. Labero Bicolor are incredible owners, so they do not tolerate competition. Most often, one individual lives in the aquarium, which ideally feels as the mistress of all the territories. To get a second representative of the breed, you must purchase a long aquarium. True, if there is a scuffle between two representatives of this breed, it is unlikely that anyone will suffer.

Aquarium fish has a swollen belly: the reason and what to do?

The bloating of the fish is of great concern to many owners of domestic aquariums, especially at the initial stage of breeding pets. Then aquarists experience the slightest external changes or changes in fish behavior. The most common problem of aquatic inhabitants is bloating. The reasons for its occurrence can be both bad and good, so you should learn to distinguish between them.

Disease - abdominal dropsy

This disease has some distinguishing features. The main one is ruffled scales, from which the fish resembles a pine cone. Also, the fish observed rapid breathing, weakness and dull color. The disease occurs as a result of viral or bacterial infections, and hexamitosis occurs with the disease. Old individuals, weakened fish or obese fish are susceptible to dropsy. Unfavorable conditions of maintenance, frequent stresses also contribute to the infection of aquarium fish. In order to prevent edema, it is advisable to keep the fish in conditions that are optimal for them, to feed them moderately with high-quality and diverse food, but to keep new fish in quarantine.

The appearance of caviar

This is perhaps the most pleasant and innocuous reason for the abdominal distention in the fish. In the abdomen of the female, caviar is formed and developed, due to which the stomach can become quite impressive.

What to do: be patient and wait for spawning, while at the same time properly caring for the future mother.


Some fish swallow large chunks of food, which then can be in their body for up to several days, inflate their stomachs and cause indigestion. To prevent this from happening, crush the food into smaller pieces.

The lack of restraint in the diet leads to obesity in fish, as a result of which their stomachs swell again.

What to do: unfortunately, there is nothing to be done here, in 99.9% everything ends in death.

Such fish during life often additionally suffer abdominal edema and cannot multiply due to obesity of the ovaries and testes. And there can be only one advice - do not overfeed.

Inflammation of the gastrointestinal tract

If the fish is confirmed inflammation of the stomach and intestines, then this indicates a lack of a variety of feed. Symptoms of this disease in waterfowl pets:

  • Weakness.
  • Darkening of the color of the fins and body.
  • Lethargy.
  • Loss of balance
  • Changes in excrement.
  • Stomach swelling with preservation of appetite.

What to do:

In order to prevent this disease, it is worth reducing the consumption of dry food by small fish. It is recommended to do their washing, soaking, disinfecting the bloodworms and the pipe worker, to diversify the diet.


Inside the body of the fish, a tumor appears and begins to grow, swelling the abdomen. It can be caused by genetic features or external factors (exposure to "chemistry", radiation, etc.).

What to do: unfortunately, there is nothing you can do, and most often these fish are disposed of.


You can bring them into the aquarium with live food, but this rarely happens. Most often they do not harm. But if there are too many of them in the body of the fish, then everything could end in its death.

What to do: treat drugs for worms that are sold in pet stores.


Its pathogen is the vibrio bacterium. Disease prone fish living in salty or brackish water. However, bacteria can get into the freshwater home pond with seafood.

All fish with poor living conditions and weakened immunity are at risk.

The disease can occur acutely or chronically and is manifested by lethargy, apathy, rapid breathing, desire for solitude, subcutaneous hemorrhage, changes in the skin of the fin on the back, tumors, ulcers, and so on, including abdominal distention.

Often, vibriosis is confused with other infectious sores, and only a research in a laboratory can reveal the truth.

What to do: put in quarantine and treat with antibiotics, nitrofurans and sulfonamides, adding them to water, as well as chloramphenicol (for food). All drugs are purchased at the pet store, and the dosage and time of treatment are indicated in the instructions for them. Prevention consists in thorough care, disinfection of water and feed, control of nitrates, nitrites and ammonia in water.

Swelling malawi

Cichlids of East African water bodies are susceptible to this disease. It was first found in fish from Lake Malawi. Symptoms are similar to dropsy, but this is a completely different disease. Little is researched.

It can be identified by lethargy, loss of appetite, shortness of breath, or increased breathing. At first, the fish keeps near the surface of the water, but during the day, the belly is very swollen and it can no longer swim, lies at the bottom. Death occurs a maximum of three days.

The causes of the disease are considered to be poor quality water, the presence of sodium chloride in water for a long time, a diet consisting only of dry fodder and mammalian meat.

What to do: exclude the causes of the disease. You can try to cure broad-spectrum antibiotics, but their effectiveness has not been proven.

Fishes often die before suffering, therefore they are most often subjected to euthanasia.

Genetic underdevelopment.

If the breeder has an unsuccessful hatching fry, then they may have an enlarged abdominal cavity. Such individuals are not considered harmful or sick, but simply inferior.

Tips for aquarium owners!

  • Slow bloating of the fish abdominal cavity may be due to obesity, reproduction of tapeworms or tumor-like neoplasms.
  • Rapid bloating, if the health of waterfowl pets is affected by bacteria or poor aquarium conditions.

After the death of an individual inside the aquarium, its abdominal cavity ferments, as a result of which it increases in size, but this does not cause the death of the pet. To minimize the risks of swelling of the abdomen of the fish, you will need to create the most favorable conditions for them, proper nutrition and only the healthy new mates. In this case, the home aquarium will delight the eyes of its owners for years.

The most expensive aquarium fish