Clown fish acting odd!

Hi, Haven't posted in quite awhile, been away. Anyway straight to the point. I came back from Holidays on Monday after been away for quite awhile. I had someone experienced feeding the fish so all was good. Yesterday I noticed one of my clowns sucking on the other clowns "Bum" and dragged him to a certain place in the tank. Since then the clown has been hiding in the rocks and only comes out at feeding time, he looks perfectly healthy and is swimming fine he just doesn't seem too be as outgoing as he used to. Why is this?


Thanks allot

 

This afternoon I found the clown fish dead at the bottom of the tank.

 

Sorry to hear about your clown. I can't really help you but I'll bump your thread. Hopefully someone can help u figure out what happened.
Are the other fish ok? And your water?