Shorty I have heard that the 2 HBG crosses (fGSF X mBG vs. fBG X mGSF) look different but can not yet substantiate that at this point. That was one reason for the HBG thread. http://www.pondboss.com/forums/ubbthreads.php?ubb=showflat&Number=99653&fpart=1 Thanks for you input on both threads. I will keep looking for confirmation and share what I find.

One other thing you posted above that is interesting is " I do know that they seemed to be more susceptible to low DO events than our standard BG .... " . That would indicate , assuming it is a genetically passed on trait to hybrids, that GSF were not in the mix as GSF have very good tolerance for low DO water - better than BG. I don't know about PS DO tolerance.