This is a very common fungal infection that is poorly treatable. There are no effective remedies for the treatment of this disease. Sometimes sick fish can be cured at an early stage of the disease. The fight against ichthyosporidosis is very complex and comes down mainly to preventive measures. The causative agent of the disease is the pathogenic fungus Ichthyosporidium hoferi. Its reproduction proceeds by disintegration into individual cells, which are covered with a hard shell - cyst. In it, the fungus forms many daughter cells. They enter the body of the fish through the digestive system. With blood flow, the fungal cells spread throughout the body and settle in all internal organs, with the exception of bone tissue and skin. Germinating in the internal organs of fish, the fungus forms inflammation and tumors, and then densification and degeneration of tissues. Affected organs can no longer function normally, which leads to irreversible metabolic disorders. With extensive damage to the nervous system, convulsions and impaired motor function occur. A fish affected by a parasitic fungus dies.
Symptoms of the disease
Symptoms of ichthyosporidosis vary depending on the dislocation of the fungus and the degree of damage to internal organs. Sick fish are depressed, stop eating, bloating and painful exhaustion occur. In many cases, there is inflammation of the eyes, eyebrows, and destruction of the fins. With kidney damage, dropsy occurs, scales rise. When the fungus is affected by the nervous system, the fish swims with difficulty, sways in place, loses balance. Sometimes the fish sink to the bottom and lie on their sides. Convulsions, trembling fins, impaired coordination of movement are noticeable. The disease can be asymptomatic for a long time. Sometimes the symptoms of ichthyosporidosis are mild, so the disease remains unnoticed. The diagnosis is made according to the clinical picture and on the basis of laboratory studies. The sooner the disease is detected, the more likely it is to save the diseased fish and destroy the infection.
In the early stages of the development of the disease, you can use a means of combating fungal infections - parachlorophenoxytol. A solution of parachlorofenoxitol is prepared at the rate of 1 mg per 1 liter of water, after which 50 ml of this solution is used per 1 liter of aquarium water. Fishes from an infected aquarium are placed in therapeutic baths for several hours. Treatment is carried out every other day until the symptoms completely disappear. With a severe defeat by a pathogenic fungus, all fish and plants are destroyed, the aquarium is disinfected in a 3% solution of chloramine. To prevent the disease, it is necessary to quarantine new fish with daily monitoring of their condition.
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