What to do with an evil clown?

[Jenn_737700]

I just returned from a trip to find my fire shrimp missing a leg. Not the greatest thing to come home to. I watched the tank a while and saw one of my clowns ( the male ) nipping at the shrimp. This isnt his first evil act. He also bites at the candycane coral from time to time, and practically tore my featherduster to pieces two monthes ago. What should I do with this evil clown?