Its gonna be hard to keep 3 of those females under 600 ... u should up ur money n do it right from the beginning ... get all ur females double gened and then when its male time get a 3 gene male with all 3 genes in it u want to throw to ur 3 females ... for example u want a pastel sugar fire ... get a pastel sugar female .. and get a 3 gene male with fire in it .. so when u pair them u have that chance to hit ur pastel sugar fire ...

Or u can get all one gene females and 3 gene male ... that might be the way to go cause all those genes might get confusing to u in the beginning