What disease is the fish with white hair all over the body?

Fish is got water mildew, commonly known as white disease, skin mildew. Water mold initial parasitism, generally do not see what abnormal symptoms of sick fish, when you see the disease, mycelium has invaded the fish wound, outward growth. Sometimes due to parasites, bacteria and other pathogens caused by the primary lesion ulceration, mold zoospores will invade from the fish body ulceration, absorb the nutrients in the skin, in the injured lesion rapid reproduction, extension, expansion, and gradually grow cotton-like hyphae. Mycelia and wound cell tissue entanglement adhesion, so that skin ulceration, tissue necrosis, while with the expansion of the focus area, fish body overload, swimming disorder, loss of appetite, fish body emaciation, and finally the disease fish due to physical exhaustion and death. This disease generally occurs in low water temperature environments below 20 ° C, and is most prevalent in spring and late winter. Hydromyces has no strict selectivity to host, and all kinds of cultured fish from eggs to adults are easily infected. Fish in overwintering ponds, lean water bodies in spring, or fish in starvation are most susceptible to water mildew. Prevention and control methods: fish into the pond operation process should be as careful as possible, do not make fish body injury. Before entering the pond, soak the fingerlings in 3 -5% saline solution for 8-10 minutes. Avoid handling farmed fish at temperatures below 15 ° C to avoid frostbite or bruising. If the fish has been found infected with water mold, the whole pool can be sprinkled with baking soda and dibromohydantoin mixture, but pay attention to the constitution and water quality changes of the sick fish to prevent production accidents.