Curious...I had a "black/white percula" come into work. Looking at the pictures of them, versus what I have in my tanks...I'm wondering if he is in fact a dark sebae or clarkii clown. How would I tell the difference at this point? He is quite small, 2" or so. His face is more tan, and pectoral fins are yellow-the most obvious difference from what I see in pictures. I guess I can try and get a picture if it will help. I don't like selling improperly labeled fish.