So recently I went on a trip only to come back to one of my white cloud minnows looking pretty ill. It's in a 10 gallon tank with 2 other minnows and a Corey catfish, and before I left I did a 25% water change. So I'm not quite sure what happened, before I left he was eating well and looked perfectly happy, but now he looks skinny and his find look thin and clamped. Originally, I thought this may be clamp fin, but my usual treatment (salt and a bit of medication from petsmart) didn't work... So I need some help! Any diagnosis or treatment help would be great!
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