I can't even begin to comment on what a HBG should look like but this post interests me just because I have a pond full of them and am searching for ways to tell F2s, F3s, etc. from my F1s. I can tell you that the only picture I've ever seen on this forum that looks like my F1s is picture 3 above. I saw that and said "that's my fish!" In Gators picture as posted by ewest I see a resemblance in the blue bars under the eyes. Some day I'll have to get some pics of my F1s and what I think might be F2s and see what the smart guys here think. Sorry Ryan but the only thing on your picture that looks to me like a HBG is the bright yellow on fin edges. I'm not doubting that it's a HBG but it's amazing what differences in water, water color, feed, and I suppose mood have on fish color. By the way I don't know exactly what cross my HBG are but I've eaten 120 fish from my pond and have yet to find a female.
