Just sent Bill some pics of a HSB a friend caught out of my pond this evening, I sacrificed it to see what it has been eating. I sent the pics of the fish and it’s stomach contents to Bill and he said they were GSF, YESSSS!!! There is hope after all!
Thank you very much Bill and everyone else who pitched in with all your knowledge, this site is absolutely amazing! Looks like if I can keep removing the larger GSF, my babies ( HSB ) can keep the youngsters under control.