This not an attack but statements of just things I've observed so far.
If, repeat IF, K.Holyoak is correct; Georgia Giants do not revert back to g.sunfish then it stands to reason that the cross uses a sunfish other than green sunfish; most likely redears as Cecil suggests. Since other sunfishes have smaller adult size, they are not likely candidates to produce a hybrid that will grow quickly to a large size.
However, Ken's pictures of G.Giants sure look like they have green 'genes' in them. Giants pictured have remanents of wavy, radiating emerald lines on the opercular flap and the anal, soft dorsal, and tail fins are edged with creamish-yellow both features of green sunfish and not features present w/ bgill or redears.
The mouth of Ken's Giants is also larger than that of a similar sized bgill or redear. Where does the larger mouth, color edged fins, and wavy, radiating emerald gill cover lines come from if not from green sunfish??. This is why I emphasized "if" at the beginning.
Mixed genetics is probably why Ken also recommends pond clean out every several years.
Regardless of the hybrid sunfishes parentage, they do have a place in 'special' fish ponds. ONE JUST HAS TO REALIZE THEIR PROS AND CONS before stocking them into a pond where the owner expects to raise larger bass or predator fish. Too bad the seller does not properly advise the pond owner about hybrid bgill facts before making the sale.
