Disease males fish


What are sick and how to treat cockerel fish

The aquarium fish fighting cockerel needs full care and in proper conditions of detention. If these rules are not followed, the fish may become ill, with negative consequences. Diseases are easily transmitted to other fish that live in the same aquarium with a rooster, even if it is divided into two halves by a partition. The treatment is simplified if she initially lives in a separate tank. If you observe: changes in the appearance, behavior and physiology of pets, it may be the symptoms of their disease.

  1. Symptoms of the disease appeared quickly, suddenly, and they showed up in other fish? Then the reason is as aquarium water. What to do: make measurements of water parameters using a water thermometer, litmus paper, pH value. Learn indicators of ammonia, nitrates and nitrites, temperature, CO2, oxygen. Be sure to change the water to fresh and clean.
  2. If symptoms of the disease appear in all fish, or in fish of the same species, it means that their organism is susceptible to infection. What to do: transplant diseased fish to a quarantine tank, do an inspection, diagnose all the symptoms, establish a diagnosis. Then you can treat.

Fin rot (Latin name: Aeromonas, Pseudomonas, Vibrio)

A terrible disease of the fish, which may be exposed to cockerels. Their fins are affected by pathogenic bacteria that completely destroy the structure of the fin. Symptoms of the disease: clouding of the fins, their sticking, the appearance of a white border, ulcers at the base of the fins, the cornea of ​​the eyes may dim.

The main cause of the disease is improper care of the reservoir. A cockerel fish can get sick if:

  • Aquarium for fish overpopulated;
  • Water changes are rare or absent;
  • Residues of the feed are not removed from the ground; the bottom siphon is not produced;
  • The filter is bad or dirty;
  • The new neighbors of the rooster did not stay in quarantine, or the roosters were placed in an aquarium with sick fish.

See how to treat fin rot.

Even in an ideal, at first glance, aquarium, cockerel fish can get sick. Fin rot is an infectious disease that exists almost everywhere, and it develops rapidly in a favorable environment. Treatment of fish is permissible with the use of anti-fungal and anti-bacterial drugs, which allow in a few days to limit the growth of bacteria, after which the fish can be fully treated. Preparations for treating fin rot in males: malachite green, Sera Baktopur, streptocid 1.5 g per 10 liters of water (baths), Tetra GeneralTonic (Tetra), Antipar, Fiosept, Tripaflavin. Can be used for the treatment of salt baths: for cockerel 7-10 grams of salt per 1 liter of water. They can be arranged 30 minutes a day. All preparations for fish should be used according to the instructions for use.

Ichthyophthyriosis, or "semolina"

The causative agent of fish disease is the ichthyoftirius infusorium It hits their body, covering it with spots like semolina. Every year this disease mutates, it becomes harder to cure. Previously, it was treated by heating water to a temperature of 30-35 ° C, single-celled were destroyed. Modern ichthyophthiriosis is not always treatable with medication.

Symptoms of the disease: the fish becomes lethargic, rubs against the ground, eats poorly, swims in jerks, trembles. On the head appears "semolina", which is distributed throughout the body. In males, parasitic unicellulars appear if:

  • Behind an aquarium do not clean, do not replace water;
  • If the tank is overpopulated, cramped for fish;
  • When the cockerel is overfed;
  • New plants or fish have not been quarantined;
  • In an aquarium for fish there is cool water, below 25 ° C.

Watch a video on how to treat ichthyophthyriosis.

Treatment of fish ichthyophthiriosis is possible with the use of sea or table salt, methylene blue, malachite green. Also use drugs Bicillin-5, Trypaflavin, Antipar, Sera Costapur. Doses of drugs should be selected according to the instructions. Another treatment condition is water heating up to a temperature of 30-32 degrees, but preventing overheating. This should be during the treatment of fish. After recovery, the fish for 3-5 days should be in the water with such a temperature, as a preventive measure. Do not forget to treat the entire aquarium with the bicillin -5 and replace the water with a clean one.

Hodiniosis, or "velvet disease"

Oodinum flagellum - the causative agent of the disease. The reasons for their spread are cool water, new neighbors untreated in quarantine, poor aquarium cleaning. When a fish is sick, gray or golden nodules form on the edges of its fins. Then the scales exfoliate, the fins stick together. Sick fish does not breathe, does not eat, moves in jerks, rubs against the bottom. The cockerel fish along with other fish should be treated in a quarantine tank, with heated water temperatures. They are treated with drugs Sera oodinopur, JBL Oodinol, Tetra Medika General Tonic, Ichthiophore, Formed or Antipar according to the instructions. Also replace the water for small fish with clean, process all decorations and plants.

See also: Aquarium species of cockerels, Compatibility of cockerels with other fish and inhabitants of the aquarium.

Diseases of aquarium cockerels

Males are a variety of exotic fish that adapt well in aquariums. The main conditions for keeping cockerels are the following: there must be an air gap between the water level and the lid so that the fish do not suffocate. Also, do not place the aquarium in a draft so that the fish do not get sick because of the cold air. When buying a cockerel, remember their fighting character and to avoid injury, keep the males apart from each other.

Females are not so aggressive, so they can be kept in the same aquarium. Please note that these fish are omnivorous - they can eat live and dry food. Just pre-determine a moderate dose of food per day. Consider that the cockerel is a fish, whose disease is caused by careless owners.

They are very fond of clean water and do not like the environment, which is saturated with organic matter. Due to inadequate care, they can have fungal diseases, due to which deformation and destruction of the fins occur.

Very often in cockerels occurs such a disease as pseudomonosis (fin "rot"). It is an infectious disease that causes a specific pathogen - the bacterium bacteria Pseudomonas. This disease can be infected from plants that are transplanted from another aquarium, sick fish, live food, infected soil.

The disease is easily recognized: first, the fins descend, and then cringe from the edges. If not treated, the fish will be left without fins and tail. Treat this pathology with drugs (biomitsin, zelenka, bitsillin-5). With the dosage is better to consult with a specialist.

Diseases of cockerels can also occur due to a lack of vitamins.

Symptoms of disease depend on nutrition. For example, due to protein deficiency, the growth of aquatic inhabitant is reduced. Overabundance of carbohydrates and fats can lead to normal obesity with the ensuing consequences - the immune system is weakened to disease, etc.

To avoid a lack of vitamins, feed the fish with a variety of foods, include frozen and live food in the diet, add vitamins. Do not keep in the same tank fish with different "diet" - in particular, herbivorous with others.

Do not overfeed the fish and remember that they love to beg.

Cockerel Fish: Care and Maintenance

Cockerels are unusual, incredibly bright and exotic fish. Aquarists love them not only for their beautiful appearance, but also for their fighting character. However, in order for these fish to please their owners for a long time, they need special care. This article contains information regarding the characteristics of the content and breeding of males in an aquarium.


The south-east of Asia is considered the birthplace of the cockerel fish. Its main habitats are warm, fresh, slow-flowing or standing bodies of water in Thailand, Vietnam, the Malay Peninsula and the islands of Indonesia.

The first mention of this unusual fish found in history in the 1800s. At that time, the people of Siam (now it is Thailand) noticed the increased aggressiveness of the males of this fish towards each other and started breeding a special breed for fighting money rates.

Cockerels were imported to Europe in 1892. The first countries to see the miracle fish were France and Germany. In the US, they came in 1910, where Frank Locke brought a new color version of cockerels. In Russia, the history of their appearance is associated with the names of V.M. Desnitsky and V.S. Melnikova and attributed to 1896.

Description and variations

The cockerelfish (betta fish, Siamese cockerel, Betta splendens) is a species of fish that belong to the macropode family. This is a labyrinth fish that also uses atmospheric air for breathing.

The shape of the body of males is oval, it is flattened laterally and extended in length. The size of the fish is mostly small: males are about 5 cm, and females are 4 cm. However, there are individuals that can reach 10 cm in length. The tail and upper fins have a rounded shape, pectoral ones - pointed. The fins of males are longer than those of females.

The males have a very interesting and varied color. They are one-, two- or multi-colored. All colors of the rainbow can be present in the coloring, as well as their shades. Males are colored brighter than females.

The brightness of the color is affected not only by the lighting, but also by the condition of the fish: during spawning or clashes with their own kind, male males become most vivid.

The life of betta fish is approximately three years.

To date, breeders bred about 70 species of cockerels. All of them with a bright unusual color. There are several classifications of species.

Depending on the shape of the fins and size:

  • voile tail;
  • crescent moontail;
  • crownstail
  • two-tailed;
  • round-tailed;
  • delta tail;
  • bristletail;
  • flagtail;
  • poster;
  • royal.

Depending on the color:

  • monochrome;
  • two-color;
  • multicolor.

How to equip an aquarium?

The cockerel fishes are considered unpretentious and easy to care for; however, some conditions should be met.


Males can be kept in small (10-15 liters), and in large aquariums. On one individual requires 3-4 liters of water. If the aquarium is large, then it can be divided into several parts by partitions. In this case, several males can be kept in one tank at the same time without damage to their health.

Partitions are made of transparent non-toxic material with small holes for water circulation. Next to them, it is better to plant high plants in order to block fish from viewing and reduce undesirable meetings.

The males are able to jump quite high out of the water, so the top of the aquarium is equipped with a net or cover with holes for the passage of air.


The optimum water temperature is 24-28 ° C, however, the rooster is fairly well tolerated to lower it to 18 ° C. It should be remembered that a long stay in a too cold aquarium is fraught with diseases. The control is carried out by means of a thermometer.

The quality and composition of the water cockerel undemanding. Nevertheless, it is better to adhere to such a framework: hardness 4-15, acidity 6.0-7.5.

For the prevention of disease and stress reduction, it is recommended to use a special salt (half a teaspoon per three liters of water).

A prerequisite is regular water changes. In large aquariums it is held once every two weeks, and in small - once every three days. From the bottom it is necessary to remove all remnants of food.


The cockerel is a labyrinth fish, that is, it breathes not only by the gills, but also by an additional special organ. In it, the blood is saturated with air, which the fish seizes with its mouth. Therefore, aeration for cockerels is not very important, but it is desirable to install a filter. It may be of small capacity, as these fish do not like a strong current.

It is also important that the surface of the water is not completely overgrown with plants, so that the cockerel can rise to the surface and capture the air. Sometimes it happens that a bacterial film forms on the surface of the water. It must be removed. This can be done with a sheet of paper, putting it to the surface of the water, and then removing it with the film.


For cockerels, river sand or gravel is fine. You can also use purchased painted soil. Before being placed in an aquarium, it must be ignited or rinsed under hot water.


In the aquarium with cockerels you can use both artificial and live plants.

When choosing artificial algae special attention should be paid to the absence of pointed edges, about which the roosters can damage their fins. The best option is silk plants.

However, living algae is still better, since they contribute to the preservation of biological balance in the aquarium. They must occupy at least a third of the space. It is necessary to take care of live plants - to thin out in time, remove rotten leaves. Put them in the ground or in special pots.

Scenery and lighting

Males love to swim between various obstacles, so it is appropriate to have shelters of stones, snags, grottoes, etc. The main thing is that all the decorations are without sharp edges and are environmentally safe.

Do not install the aquarium in direct sunlight.


Males in food are picky and almost omnivorous. For them you can use live, dry and frozen food. Nevertheless, a large part of the diet should be a live feed (bloodworm, tube maker, daphnia, Cyclops, etc.). The cockerels will not refuse from rain or flatworms, snails or zooplankton.

Feed the fish 1-2 times a day. Food at one time give exactly enough to fish ate it completely in 15 minutes. Leftovers must be removed immediately. Overfeeding is not recommended, as this can lead to fish obesity. Well, once a week to arrange a fasting day.


The cockerels get along badly even with their own kind. Males constantly divide either territory or female. Therefore, in a small aquarium it is better to keep only a pair of males or a male with two females. You can read about how to settle several males at the same time in one aquarium in the article “How to equip an aquarium?”.

Males of cockerel fish are absolutely incompatible with all kinds of peaceful fish, especially those with long tails and fins (for example, guppies). Females are more peaceful.

All fish can be divided into several groups of liveability with cockerels:

  • Swordsmen, petilia, black mollies, soma brocade and speckled, terntions, rasbora, ghouls nagging, minors and so on get along well;
  • there may be fights with tearing off of tails, if it is neons, guppies, cardinals, barbs, gourami spotted, marble and pearl, labo, etc .;
  • Astronotuses, piranhas, parrots, lineatuses, tetraodons, akaras, etc. do not get along at all.


Cockerel male

In the cockerel fish, it is quite easy to distinguish the female and the male. The male is slender, has a bright color and long fins. The female is smaller in size, its fins are short, on the abdomen near the tail there is a small white grain, which appears at the age of 3 months. For breeding is better to take a pair at the age of 6-8 months.

Despite the fact that spawning can occur in the general aquarium, it is still better to fish the fish. A pair of aquarium should have a length of at least 15 cm, volume 4-5 liters. They equip it like this: the ground is not laid, a dimmed lighting is installed, a couple of plants with small leaves are placed, water is poured to the level of 10-15 cm (after the mating of the male is reduced to 5 cm), aeration is established. Water temperature should be about 28-30 ° C. Water in advance to defend 3-4 days. It is recommended to establish a shelter (cave) for the female, since the male can be very aggressive during this period.

The first to spawn put the male. There he builds a nest of air bubbles, sealed with his saliva, and small floating plants. After the female begins to spawn, he collects the eggs in his mouth and puts them into the nest. Then the female chases away and takes care of the offspring himself. For better development of caviar, you can add boiled water of the same temperature. After the appearance of the fry, the male is also removed.

Female Cockerel

Feed the fry finely chopped pipemaker and artemia. Dry flakes are undesirable, as they slow down the development. At three weeks of age, the fry are sorted to avoid eating large small ones. The labyrinth organ in fish is finally formed at the age of one month. Then you can remove aeration. And as soon as the fish begin to show aggression towards their neighbors, they are deposited and begin to contain as adult males.


One of the most common diseases among cockerels is fin rot. It is caused by a specific bacterium that enters the aquarium with poorly treated soil, live food or sick fish. In this disease, the tail and fins descend and become scorched around the edges. If untreated and the disease progresses, the fish may lose its tail and fins.

Other very common ailments of males are dropsy, fungal skin lesions, odinosis, ichthyophthyriosis.

Interesting Facts

  • In South Asia, cockerels were used to fight money stakes. Fights to the death of the fish, as a rule, did not lead, the case ended in shabby tails. Now such battles are prohibited.
  • The male rooster can fight to the point of exhaustion, even with its reflection in the mirror.
  • These fish are endowed with two respiratory systems: gills and a labyrinth organ.
  • Males are very interesting to show sympathy for the opposite sex: the female "fidgets" back and forth, and the male bulges gills and fins and wriggles with her whole body.

Useful tips

Do not too often iron the cockerels (although they allow), as some owners do. Scale on top has a protective layer of mucus. If this film is inadvertently damaged, then the fish will become very vulnerable to various diseases.

Sometimes males can go to the bottom of the aquarium. If this does not last long, then do not worry - they are so relaxed. Anxiety should be beaten if such behavior is observed for a long time. Then you need to consult a specialist and check the health of the fish.

If the fish are sick, then for their treatment there are special medicines (against fungi or parasites, antibiotics). They are best ordered at the pet store in advance.

We hope that this article was useful for those who plan to settle the fish-cockerel in their aquarium. Let the pet feel comfortable and for a long time happy with its beauty!

And according to the tradition, the video, which deals with the rules of care and maintenance of the Siamese Cockerel:

Treatment of fin rot in males

Those who grow aquarium fish often have a question - “How to treat fin rot, and what causes it?” Many types of aquarium fish are affected by this disease. Both cockerels, scalars and guppies, as well as other representatives of popular species of aquarium fish, can become ill. Fin rot is very often found in indoor aquariums, and the list of fish that are susceptible to infection of this disease is very diverse.

The result of damage to fin rot looks almost always the same, and the causes of the disease may be hiding in various mistakes of keeping fish. Most often fin rot appears due to new, not quarantined aquarium fish. Low water temperatures and poor sanitary conditions of the aquarium — rare water changes, poor soil cleaning, and pollution of the aquarium filter media — also lead to illness. Very often fin rot occurs in cockerels (especially males) due to the abundant "plumage" of fish.

Those who are faced with this problem are beginning to search hard for methods of treating this disease.

A sign of the appearance of fin rot in aquarium fish is discoloration of the tips of the fins in the affected area. They become thin and lifeless, later die off. If you do not start treatment in time, the affected areas increase, and the fish may remain without a fin. Most often, the most tender part of the fin dies, and what remains remains like lifeless threads or turns into bone carcasses without the tender tissue of an infected fin.

If everything depends only on poor sanitary conditions, then it is only necessary to clean and change the water in the aquarium, after which fin rot will leave your fish alone. However, it is recommended not to risk it, but to treat your pets.

For prophylaxis and in order to treat fin rot, use the following drugs: copper sulfate, trypaflavin or malachite green. After the full course of treatment has been carried out, and the signs of fin rot have disappeared, it is necessary to continue the prophylactic course for 4-7 days to fix the result.

After successfully combating the disease, the fins of your fish will gradually take proper form, however, it is worth considering that the recovery time after this ailment depends both on the variety of the fish and on its maintenance and care for the aquarium.

Help is needed! sick fish (cockerel)

Bouquet of butterflies: *

Immediate measures should be taken if the rooster has at least one of these symptoms: · squeezed fins, · it lies on its side, · breathes heavily, · has dull eyes, · swollen gills, · pallor of coloring, · if the cock is scratching about different objects in the aquarium, · white dots on the body and fins, · golden dust, · threads of white color stretching from the body of the fish. · A sharp rejection of food. The diseases of males can be divided into three groups: 1. parasitic, 2. bacterial 3. fungal. Parasitic Ichthyophthyriosis It is also called the "semolina" aquarium fish. This disease is caused by protozoa Ichthyophthirius multifiliis. The symptoms of cockerels with this disease are as follows: the fins are compressed, swimming in spurts, they itch on different objects in the aquarium - this is how the fish tries to get rid of parasites. The simplest live under the skin of fish, feeding on the host's tissues. They are fixed and form white capsules. When the parasites reach puberty, the capsules burst, breaking off the skin epithelium. These parasites are present in every aquarium, but the fish are protected by a good immune system. As soon as it is weakened, and cold or dirty water can contribute to this, poor conditions of feeding and feeding, so the parasites will immediately start working and infect the fish. After passing through the life cycle, a parasite that has reached puberty falls into the ground, and forms a cyst in which cell division occurs. Therefore, at this stage, the treatment is useless. The division lasts from several hours to several days - the parasite is divided into 800-1500 daughter cells, which then go in search of the owner. The best method of treatment is to use preparations containing malachite green or copper. For example: Sera Kostapur, Tetra Konrta Ik, Antipar, Formed and others. Corduroy or Oodinios. This disease is caused by the protozoa Oodinium. In males infected with odiniums, the following symptoms appear: squeezed fins, rapid breathing, golden spots or dust on the body and fins. As with ichthyophthiriosis, cockerels float jerky and try to scratch themselves against various objects in the aquarium. Oodiniosis occurs in fish when they are kept in poor conditions. Also especially vulnerable are the fish that have recently spawned. If you do not make the treatment, the fish will die. Very well help in the fight against odiniumy drugs that contain basically copper. For example: Formed, Oodinol, Bitsilin-5 also copes well. Internal parasites (internal bacterial lesions). These diseases are caused by various bacteria and parasites. Usually the most important symptom is when the fish eats well, but begins to lose weight. Of course, prevention is better than cure. Live food should be thoroughly rinsed for a week, and frozen to buy only from trusted vendors. If you notice signs of internal lesions, then the fish should be immediately transplanted into the aquarium with clean, warm water and begin treatment. For treatment, use these drugs: Antibak-250, Sera Baktopur Direct, Furan-2. After treatment, the entire inventory is sanitized by Ecocide or Chlorhexedine. Gill flukes. It is very easy to notice that the fish is infected with gill flukes. Gills become inflamed and become faded, swollen, hemorrhages appear, they become covered with mucus, appetite disappears and soon the fish die from asphyxiation. Infected fish becomes restless, breathing hard, trying to itch the gills of plants and various decorations. Sometimes flukes can be seen hanging from the gills. For the treatment of using such drugs: Azinoks Plus, Formed, Sera Tremazole. Fungal Saprolegnosis This disease is provoked by a number of mushrooms Saprolegnia, Aphanomyces, Achilla. The disease develops when keeping fish in too cold and dirty water. The skin, fins, gills and calves are damaged.


Hmm, I do not even know. Try google.
My cock died yesterday. From dropsy. Recently I didn’t swim, the tail has lost all beauty, the scales are bristling. If you are wrong, then not a dropsy.
Motyle feed is not desirable. Different sores tolerate. Dry food daily too! Immunity falls!
Change the food! Switch to other feed. Before you start, you need to read the information.
It was also necessary to ask whether it was imported or not. Those brought in are ill and live a little.

Lena Mironova

This is not an aquarium, but a plastic bottle that releases carcinogens into water. Only snails can live in such a jar, and not like not fish. Aquarium heater for cockerel should always be. no temperature drops are allowed for them, cockerels are very thermophilic. and once again I repeat the plastic bottle and artificial algae spoils the water.
Now I will write as it was necessary to do initially so that the fish did not get sick.
the aquarium has only glass, a filter and a heater in it (the aerator for males is not needed, but it is better to install a filter with aeration). Aquarium soil should be washed properly and it would be good to boil it. The temperature on the heating set 27-28 degrees. This is especially important when buying fish, because they perceive the road and the change of water with stress. water before running the fish should stand for about 10 days. then water plants are planted in such water. and after 3 days of fish. Neither the filter nor the heating is turned off at all, even if you leave for a long time.
you can feed the fish with live food, but only frozen. before serving, it is better to thaw a cube of feed on a napkin. Frozen feed sold in pet stores. Your task is to bring such food to the house, without letting it unfreeze. if it defrosts, you can throw it away. or freeze live moths themselves in small piles in some convenient container. raw fresh bloodworm is not recommended; diseases are transmitted. You can feed it with flakes or chips for tropical fish, but this kind of food should be bought in branded jars, and not by weight.

Julia Yaremchuk

in general it seems to me that it is not possible to cure the fish. You look on the Internet. Maybe you will find something. You can even ask the vet. He does not hit in the forehead. The fish is probably not saved. But you know all the same.

Natalia A.

Methylenku why? In inexperienced hands, poison is for fish, moreover, it is toxic. And what does the new water mean? Every time you pour-pour new? So it will not work, especially with the labyrinth, preferring the "old" and soft water. Teach materiel on launch and do not torment the fish in the tank of the toilet.