That is a pic of what the pond owner said was an F1 GG (2nd generation GG). It was born about 10 mths after the first fish (GG) went in to a new pond. There were also some normal looking GG and a few more like the one above.
Just so you know the F1 is the original fish delivered from the hatchery. The fish in the picture could only be an F2 at best being born 10 months later. GG reproduce as early as 3 to 5" so it could actually be the by product of 2 F2's mating. I never have been fond of anything after the F1 delivered fish.
