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水霉灵
作用:因鱼体受伤,水温剧烈变化导致鱼体抵抗力下降，而引起的水霉病。
For fish injury, water temperature changes cause severe decline in fish immunity, which leads to gill rotting and tail rotting disease
症状（Symptoms）:
鱼儿皮肤及眼球长有白色像棉花状物质，常出现与其他固体摩擦现象，行动迟缓,食欲减退,极度消瘦。
fish skin and eye have material what looks like white cotton, sometimes appear with other solid friction phenomena, slow-moving, anorexia, extremely thin.