请教个问题,我的锦鲤经常身体发红长白毛沉底,时间久了鱼鳍也红,怎么回事?

上个月我的锦鲤也得的白毛病,九毛钱的土霉素100升水7片,药砸碎下缸里不用管了,每隔三天换水五分之一,三天见效七天基本痊愈,弊病水黄 。

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