Welcome to the forum! Not surprised at what you are finding in your pond. Others here will weigh in but in my experience it seems that HBG offspring will regress back toward GSF which is one of their parents. I'm glad to see that you did not include HBG in your re-stocking plan. Your plan of LMB, BG, RES and FHM should work nicely. You could even throw in some Channel Cats if you are so inclined. Stick to the proper ratios and you should be fine. Best of luck to you. Oh, one more thing......if you do try to kill out the GSF and start over, make darn sure you get 'em all.....I've seen those things survive in puddles of water 2 inches deep.
