Here's the thing...they nip and pick at your LR all day long. some people seem to believe that your corals never open up as nicely when you have a foxface. i have one and have only had it nip at a star polyp once. the key is to keep them well fed. if you get one, you might see it nipping around your coral, but keep an eye on it cuz it's likely that it is just cleaning some algae.