What about the new koi lying in the tank? the causes of the white problems of the koi and its treatment.

The disease generally occurs in a low water temperature environment below 20 ℃, and is most prevalent in early spring and late winter. Water mold has no strict selectivity to the host, and it is easy to be infected from fish eggs to adult fish.

Fish in dense overwintering ponds, fish in lean water bodies in spring or fish in a state of hunger are most likely to suffer from water mildew.

The initial parasitism, generally do not see any abnormal symptoms of diseased fish, when the disease, the mycelium has invaded the fish wound, outward growth, the lesion site grew a large number of cotton-like hyphae, like clumps of white hair.

Sometimes due to parasites, bacteria and other pathogens infection caused by primary focus ulceration, mold motile spores invade from the fish body ulceration, absorb nutrients in the skin, rapid reproduction, spread, expand, and gradually grow cotton-like hyphae.

The hyphae were entangled and adhered to the cells and tissues of the wound, resulting in skin ulceration and tissue necrosis. at the same time, with the expansion of the focus area, the fish swimming disorder, loss of appetite, weight loss, and finally died of physical exhaustion.

If the fishing operation is improper, it will also cause an outbreak of water mildew.

(1) in the process of fishing for koi pond or other operations, it is necessary to be as careful as possible to reduce the chance of fish injury, and to avoid handling the fish under the water temperature below 15 ℃, so as to avoid frostbite.

Or bruises.

(2) the fish were soaked in saline solution for 8 ~ 10 minutes before entering the pond.

(3) sprinkle the whole pool with the mixture of salt and baking soda (1: 1).

(4) sprinkle symptomatic methylene blue in the whole pool, use it again every 2 days, and sprinkle it with hydantoin drugs 5 days later.

(5) 15 mg of streptotoxin was injected intramuscularly per kg body weight.