I have a hard time keeping a clean up crew. I really think this dude is the culprit. Snails, crabs, shrimp, etc. all seem to come up missing rather quickly. I have seen him drag hermits and snails into his hole. He leaves my conch and cleaner shrimp alone but I think he looks at everything else as a meal. He has even tried to eat a small clown and a small damsel. Anyone else have this problem? I would like to add another goby or two but think they will probably have the same fate.