It is normal for cultured fish to have rotten tails and rotten fins, because large-scale farming is easy to occur now. There are many reasons, mainly because the feeding water is not good, the feeding water is turbid for a long time, the new water is too irritating, the water quality is not good, or the fish has insufficient food, which leads to bacterial infection. If fin rot is not treated in time, it will also spread the disease to fish schools. The fins are slightly rotten and infected by bacteria. The edge of each fin of sick fish is milky white, followed by decay, and the fins are incomplete, especially the caudal fin. Sometimes the fin will become broom-shaped, and in severe cases, the whole tail fin will rot.

The prevention and treatment of such problems are:

Change the water first to purify the water. The use of Guanjunlong bioreactor can maintain the water purification of aquaculture ponds for a long time and efficiently. Thoroughly decompose feces, dead algae, feed residue, ammonia nitrogen, etc.

The whole pool of Rhodotorula was used to sterilize heavy metal substances in Jingha U, and the aquaculture water body was effectively repaired.

Enhance anti-stress and anti-immunity with stress stock solution.

Dissolve 1g furacilin or furazolidone in 10kg water, soak the sick fish 10-20min, and take it repeatedly to relieve the disease.

Put 3-5 pieces of furazolidone into 100 kg water and soak the sick fish for 30 minutes. ?

Soaking 5-8 pieces of sterilized oxytetracycline in 100 kg water can prevent young fish or adult fish from being infected with this disease. ?

Dissolve 0. 1 g potassium permanganate in 10 kg water and soak the sick fish 10 min. ?

Put into salt water feeding. ?