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皇冠鱼为什么身上突然变黑
更新时间： 2020-10-23 00:00:00  

皇冠鱼身上突然变黑，要看是整体变黑还是局部变黑，整体变黑原因如下：

水温超过高或过低；水质pH值过高或过低；水质硬度值过高或过低；光照太弱或时长不够，须加大光照；局部变黑如果是不对称，非规律性的，多数是致病菌、寄生虫感染，须针对原因对症下药。

关键词： 皇冠 为什么 身上 突然

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