Melanurus Wrasse.

[Myka]

Originally Posted by SeaHorse_Fanatic

They tend to be reef-safe. Only seem to get riled up with other similar wrasses.

Agreed. I have one in my reef. He spends all day hunting around the tank. He picks at corals (I think getting "bugs") although he doesn't damage the corals, and there is a Peppermint shrimp in there too. He keeps bristleworms in check. He may have killed a couple snails, but I can't be sure...didn't see him do it.