I don't know if this is the right spot as I'm still new here. I added a coral beauty about 3 weeks ago as my 2 year old picked it out to add to my 54g tank. It was always hidden and never out so today I decided to move my live rock around as its a corner tank and I have it all stacked in the back creating a lot of caves I couldn't see. Today I moved it to where it is more spread out with big openings to swim through and looks a lot better IMO but anyways while moving the rocks I noticed my ocellaris clown attacking my chromis and neon goby?? I've never seen him do this before so I removed him while I did all my work and added him back in. I've never seen him pick on anyone before but tonight I noticed my coral beauty out swimming a lot and I was so excited he was out till he started doing flips and just landed on the sand and didn't move. I pulled him out and his back fin was torn up and marks on his side so I'm thinking the clown? Tank mates are 3 chromis, 1 firefish, 1 2-1/2" clown, cleaner shrimp, peppermint shrimp, arrow crab and other snails and hermits. Should I remove my clown from the tank? I've never seen him pick on anyone before today but I don't think anything else in the tank would do it. Thanks