水霉病又叫肤霉病、白毛病,是由水霉菌等附生于鱼的皮肤而引起的。病鱼体表菌丝大量繁殖,生长成丛,呈絮状,白色或灰白色。菌丝分泌毒素,破坏鱼体组织,使病鱼烦燥不安,游动失常,食欲减退,皮肤粘液增多,以至瘦弱而死。可危害各种养殖鱼类和鱼卵。 Water mildew, also known as mold disease, white hair, is caused by water fungus and other attached to the skin of fish. Diseased fish surface mycelium multiply, grow into clumps, was flocculent, white or gray. Mycelium secrete toxins, destroying the fish body tissue, sick fish irritable, wandering, loss of appetite, increased skin mucus, and emaciated and die. Can endanger all kinds of farmed fish and eggs.