Has it ever gone after snails/crabs? I had a blue headed wrasse in another tank once that decimated everything. Ive been looking for some more fish for this tank that wont get too big, eat coral, eat inverts or fight with other fish lol.I've had them for almost 2 years and haven't really had a problem so far. I have a bonded pair of banded coral shrimp and they've never bothered them. I add ghost shrimp whenever the sargassum comes through and they do a number on those but they're usually really small.