I have a 15g high FOWLR tank to which I added to clown fish last weekend. I think they are Ocellaris clowns and not percula clowns. The blank lines on either side of the white stripe is very thin not thick that's what makes me think they are ocellaris. Also one of the fish has a black band/stripe at the bottom of its pectoral fins and the other does not. Is that a distiguishing feature between percula and ocellaris?