i used to think that about my eel. Until my puffer got tired of the shrimp trying to climb on him, snipped his tentacles to nubs, and the eel snatched it right off a rock in front of meYou all think red banded shrimp (cleaner shrimp) get a free pass? I think they do because the fish know instinctively they are an asset. The coloration of the shrimp does it.