What should I do if koi fish's fishtail rots his scalp?

Rotten fin and rotten tail: diseases caused by bacteria and mold in wounds.

Most of them are due to poor feeding water, long-term turbidity of water quality, excessive stimulation of new water, or mutual biting of fish, leading to bacterial infection.

Symptoms: the fish fin turns white, the wound secretes mucus, and the caudal fin, dorsal fin and ventral fin may rot, resulting in blood spots. When the disease gets worse, the rotten fins and tails will be separated from the fish, which will lead to death in severe cases.

therapeutic method

A, put 0.2 g of furacilin powder into 100 kg water for disinfection, and repeated medication can relieve the disease.

B, put 3~5 pieces of furazolidone into 100 kg water to soak the sick fish for 30 minutes.

C, put 5~8 tablets of oxytetracycline into 100 kg water for disinfection, which can prevent the infection of this disease.

D, soaking in low-concentration potassium permanganate and salt solution for disinfection.

E, dip and wash with gentamicin, and put 2 tablets into the aquarium of 100cm x 50cm x 35cm.

F, soaking the sick fish in 1% salt solution until the sick fish is cured.

Well, it's best to fish out the sick fish, treat them alone, rest, stop feeding and take oxygen.