Thanks Meowzer! Its a camelback cowfish. Cowfish for most part are ok with corals, but I am sure you know, they do whatever they want. Never did I hear that a Naso eats featherdusters, but mine did. It grows to about 4.5 inches. Pretty docile, but I have a feeling that he is an evil genius. Every time I look at that little fella, he looks like he is plotting something big. Now, everything I have read about him is different, so I am experimenting with him.