I know someone has posted about them before, but I can't recall who or what the thread was titled. If you're adept at using the RC search I'm sure you can dig up the thread with a bit of effort. Anyway as far as I can recall they do best in sub tropical temperatures, are not invert safe, are fairly reclusive, not very hardy and also are expensive.
I think that those are some of the reasons that they aren't very common in reef tanks. From what I remember reading they really seemed best suited for a specialized fish only setup. Keep in mind that I'm far from an expert and have no experience with the fish. I just think they're pretty unique looking and didn't want your thread to go unanswered.