金鱼水霉病,一年四季均可发生.尤以晚秋和冬春为多见。病因是水霉菌由伤口侵入,开始寄生于表皮,逐渐深入肌肉,吸取鱼体营养,大量繁殖,向外生出棉絮状、灰白或青灰色菌丝,寄生部位伤口发炎充血、坏死和溃烂,可以使病鱼很快死亡。碰伤和冻伤的幼鱼易患此病,未受精的和胚胎活力差的鱼卵 Goldfish mold disease, can occur throughout the year, especially late autumn and winter and spring are more common. The etiology is the water mold invaded by the wound, began to parasitize the epidermis, and gradually into the muscle, fish nutrition, multiply, to produce a cotton-like, gray or blue gray mycelium, parasitic wounds inflammation congestion, necrosis and ulceration, can make The sick fish died soon. Bugs and frostbite juveniles are predisposed to the disease, unfertilized and poorly fertilized eggs