I have a purple one, he is beautiful. Very peaceful, and very shy. They are very quick! he hides a lot, but I get to see him everyonce in awhile. I feed my fish a fresh variety that I prepare myself, and he eats that readily. I also read that they have a sort of filter feeding ability as well. So dont be surprised if you dont actually see him eat. Dont be surprised if you dont see them that much at all.