Bol’sheretsk Ask for help

Bol’sheretsk The stomach is rotten more than half, how to treat? I also used erythromycin ointment, the effect is not ideal!
Article Copyright Statement: Unless otherwise specified, all areBol’sheretsk aquarium|Bol’sheretsk arowana fish farm|Bol’sheretsk arowana fishOriginal article, reprinting or copying, please use a hyperlink and indicate the source。
