I have more vermetids snails in my tank than I would like. Thanks are the small (smaller than a bb) variety. I no longer keep shrimp because I am tired of them stealing food from my corals so wrasse are an option. I also no longer have hermit crabs and would rather not add them back into my system but would if they are my best bet to control the vermrtids. Any suggestions? Tank is a mixed reef 75 gallon.