I am pretty sure my hoeven's/melanurus wrasse killed my cleaner shrimp. The shrimp has been in the tank with the wrasse and 2 o clowns for or over a year and a half and I never had a problem. Today I come home all was well, after a shower found the tail to the shrimp torn in half and the rest of him gone. This isn't a molt, it was a killing. Has this happened to anyone else? The cleaner was my daughter favorite, so when she come this summer I HAVE to have a cleaner shrimp in the tank. Like the commercial " dad rushes home with a fish and put it in the fish bowl as his daughter works in the door".