Quote Originally Posted by dotc0m
I just did my math. Since they are both Co-dom (and correct me if I'm wrong) it would be 25% YB Pastel, 25% normal, and 50% YB? or Pastel? That's where I get confused.

Also I know if that was the case, I know whatever the het is would be 66%. Am I totally confusing myself here?
I didn't realize you meant breeding a pastel with a yellowbelly. You got it mostly right. It would be 25% both yellowbelly and pastel. And there's no 66% or 50% hets when dealing with codoms. Its either a pastel or yellowbelly, or its not. The normal looking offspring are just that; normal.