i don't think he is reef safe (just a hunch), thus me taking him out, he's the size of a what would be a huge emerald crab, dark brown/black, bumpy shell and hairy... would be cool in a fish only tank, or a reef if you want to risk it... i have had no corals nibbled on, or missing, but since i caught him, i don't want to chance it and re-release him into my tank. free to good home, i'd prefer to not have to kill the poor little guy. i'm in middletown 07748.