Bruce :

Tigers were fin clipped by the hatchery. I am working on a full report of what has transpired in this pond. There will be feeding (limited) in 06. On the CNBG vs BG I can tell the difference on the adult males in spawning color as the CNBG have a copper bar across their head. I will get a pic. to post. On the very young CNBG less than 6 mths. often the fins/tail have light/white edge but not always. I have seen this in the aquarium. I can't tell on the females which is which with any certainty. I have not documented any difference in size of CNBG over BG in the biggest males. In this pond the top male BG are more than holding their own against all other fish and they have no fear in swimming out in open water. It would take a really big LMB to eat one of these males ( I think 12+ lbs.). \:\)