Colour Genetics

[Sticks07]

Hi All,

        Can anyone enlighten me on some genetic factors of fish. I know how they work and am fully aware of what factors affect what when it comes to horses, dogs and poultry but fish is a different matter.
        The fact is I bought some " T. Red Cheeks" a few years ago now thier fry are breeding and I am producing some Albinos ? It is obviously some kind of through back but how common is it ?