<a href=showthread.php?s=&postid=7892545#post7892545 target=_blank>Originally posted</a> by pitt_prodigy
I have a 4" niger in my reef tank and he gets along with everbody else fine. Never bothers corals. BUT he is a VERY aggressive feeder and has been known to spit water at my eyes when i open the tank. He is also the prime suspect in the disappearance of most of my cleaning crew. Every once and a while i see him carrying a snail or hermit shell around in his mouth.
To conclude, they are "reef safe" in that they wont bother corals.... however be prepared to restock your cleaning crew often.