为什么我的荷兰凤凰生病了？

荷兰凤凰是个容易生病的鱼，平且存活几率较低。 在这里，我们会提到：

生病原因及预防措施 - 00:16
如何识别病鱼 - 02:16
如何处理生病的鱼 - 02:42

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