You said something about them mating, we have a pair at the store that came from a black/white and orange pair they are called coco ocellaris clowns, they are amazing!
I currently have a tomato clown and a percula clown in a 75 gallon with no problems, both of virtually equal size. They have been together over a year.
Those cocos sound interesting. I think I read somewhere that when you breed a orange and black ocellaris that their offspring will be either orange or black but not both. Do you have a pic of the cocos that you got in at the store? I can't find any pics online. Thanks.