Thanks for all the feedback guys. I had no idea these were so difficult to keep. He just looked so beautiful and graceful, I had to bring him home. I realize now that I might have made a mistake. I have a 200 gallon tank, so he's got plenty of room to swim. Except for the Purple and Sohal tangs, I don't have any agressive fish but I've been watching the tank closely and both the tangs have barely noticed him. Anyway, reading the thread posted by bthomas, there seems to be a possibility of success in maintaining this beautiful fish in my tank. At the risk of being cruel, I am going to try and keep him. I will buy some sponge, and those 'soft and moist' pellets PaulB mentions in his post tomorrow. Will post pictures as well. Thanks again for the excellent feedback.