I just got a pair of them from my lfs a few weeks ago. I paid $40 each. They were sold to me as black oscellaris clowns. Wether they are oscellaris or percula I really have no idea. The only way to tell would be to count fin rays. a little easier said than done on a constantly moving fish... Anyways, they have been very hardy so far (no different from other percs or oscellaris) I'm feeding them mostly formula one, but they will eat prettymuch anything offered... flakes, krill, mysis, finely chopped shrimp, squid, and silversides. So far they have not adopted any of my corals as a surrogate host anemone, but who knows... Since i aquired them they have rarely moved from within 3 inches of one another... With any luck i may have a true pair...