So, I have had a lot of fish die recently because of a oxygen depravation session and now my maroon clown is looking a little stressed. I cleaned the tank out a lot yesterday and noticed he was a bit shy and today he isnt as shy but he wont eat and his top fin is missing a little bit. all of his fins are hugging him but he doesnt appear to be sick. It isnt oxygen depravation. The only other fish that I have with him is a powder blue tang and a rainfords goby. He also won't eat. He looks like he's struggling but I have no idea why. I tested my water and everything is perfect! it makes no sense!! I am scared he might not live another week! My tang looks just as happy as ever and won't STOP eating lol!!