I recently took in a discus that a guy bought from the LFS and thought he could keep. When I got him he had a chunk missing out of his top fin but other than that was in good shape. It took me a while to get him eating but he finally started so I took him out of quarantine and put him in my FW comm tank. He's been doing good for the past two weeks but today I noticed that he is keeping his left fin tucked into his side and wont use it at all.
Is it broke? Anything I can do?
Is it broke? Anything I can do?