Pond Boss Forums FISH & FISHING Sunfish-Including Largemouth and Smallmouth Bass Lepomis Hybrids

You guys are correct that RES can have yellowish anal and pelvic fins. For GSF hybrids the pelvic is often a different shade of yellow compared to the yellow of A HBG pelvic fin. The HBG yellow on the anal fin is usually on the margin and not throughout the entire fin as in the yellow tint of the RES. I agree with observations that the yellow on fins vary quite a bit. There is likely very little if any GSF genes in the fish of the first 6 pictures of this thread. Compare the yellow on the HBG fins in the link below to that on the fins of the RES above; noticeably different yellow coloration on the two different fish.
http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=256325#Post256325

It is not just a matter of yellow on the pelvic and anal fins but where and how is the yellow located on the fin. The colors including yellow show up best with fish in clearer waters. Fish in murky water almost always have murky, faded colors.