I am thinking of purchasing about 6 juevenile angel fish they are 3/4" to 1-1/4". I was wondering if they could breed with other mutations and it wont effect them when they are pairing, for example can a koi angel breed with a marble veil angel, or would it just be easier to get all koi angels? How big do they have to be to breed? And how fast do you think they will grow if I feed them frozen baby brine shrimp, freeze dried bloodworms, and tropical flake food?