Eric_in_TN, I also have them. As Dave Willis said, they will reproduce about the same as BG but don't get as big. A breeding male is even brighter than this picture. For me, they provide snail control and whenever someone catches one, they just can't get over how beautiful it is. We tend to get hybrids when we have a lot of one species and few of the other. We a good population of pumpkinseeds, so I don't think we'll have a problem. We also have a grow out pond with SMB and pumpkinseeds that seems to be doing well.