Prevention and Treatment Methods for Fin Rot in Tropical Ornamental Fish and an Analysis of Its Contagiousness

 The cause is bacterial infection brought on by poor water quality. The fins of affected fish rot away, and the skin becomes dry and lustreless. Sometimes it may also be that the fish bite and tear at each other, and the damaged fins then become infected by bacteria.

Prevention and treatment methods: you may choose 0.02 g of nitrofurazone powder, dissolved in 10 kg of water, and soak the affected fish for 10 minutes. Alternatively, choose 3-5 tablets of furazolidone, dissolved in 100 kg of water, and soak the affected fish for 20-30 minutes. Or choose 5-8 tablets of oxytetracycline, dissolved in 100 kg of water, and soak the affected fish for 30 minutes.

If fin rot is not treated in time, it can also spread the disease to the whole school of fish. The fins rot mildly and then become infected by bacteria. The edges of the fins of affected fish turn milky white, then rot, and the fin rays become incomplete and broken; this is especially obvious on the caudal fin. Sometimes the fin rays take on a broom-like appearance, and in severe cases the entire caudal fin rots away.
Treatment:
(1) Dissolve 1 g of nitrofurazone or furazolidone in 10 kg of water, and soak the affected fish for 10-20 minutes; after repeated medication the condition can be relieved.
(2) Put 3-5 tablets of furazolidone in 100 kg of water, and soak the affected fish for 30 minutes.
(3) Put 5-8 tablets of oxytetracycline in 100 kg of water and soak for disinfection; this can prevent young or adult fish from becoming infected with this disease.
(4) Soak with gentamicin; generally put 2 ampoules in a 100*50*35CM aquarium. 
(5) Dissolve 0.1 g of potassium permanganate in 10 kg of water, and soak the affected fish for 10 minutes. 
(6) Add an appropriate amount of methylene blue medicated liquid, penicillin, green F gold, or keep them in a thin saltwater solution.