distinguishing black ocellaris and black percula..not the same??

[Chipie]

Hi,
Sure a regular (ocellaris) would npair with a black and white one. They are the same except for the color.

I have 2 pairs but each in different tanks. I had a pair of regular Ocellaris with one of the black and white pair for a while but i guess i did too good a job of keeping them appart. One of the black and white as started to become a female so a war started between thew 2 pairs. I sadly had to get rid of the orange pair. If not they would have killed the black and white ones which are still small. (2 inches max.)