How to tell if my fish has fin rot?

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Ruii

Gambusia
MFK Member
May 16, 2011
335
0
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Singapore
well my aowana tail fin has white layer around it and it has torn fin too its not so obvious though. Maybe im paranoid. its not alone and my snakehead is worst .. will fin rot spread? i did took out my snake head and put it in a smaller tank with medications.. but as for my arowana i'm not sure
 
well wait a bit and see if it rots more then you can be sure.. maybe you can just keep the water super clean with WC and a bit of salt that might help his tail fin. who knows bud they could be fighting each other
 
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