i dont have one now, but i have had them in the past... i also know of quite a few people who keep them in there reef... however, there are 2 different, that look quite similiar, long nose butterflies i believe, and one is not so reef safe i believe... you have to do a little research on that... but compared to the copperband, then are 100 times easier to keep over all... and will normally eat prepared foods very well... great fish imo... GL
i am sure more will chime in... i know RC has a ton of threads about them in a few of the forums there...