I have been producing these granite/peppered looking babies for the last few years now. I never really thought is was genetic, but this year has me wondering. The reason I think they may be genetic is because this year I did some line breeding and again half the clutch was "granite" and the rest looked normal. I was not trying to line breed for the "granite" pattern, it just came out. I can only link it back to 2001 original male( who didn't have the granite look).

Tell me what you think?