Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations RESxGSF hybrid

It could be a pure GSF but I don't think so. I caught a couple pure GSF near the same time. Too tall and too thin (not wide enough body). Can't tell the width by the picuture but in hand there is a distinct difference between the hybrids and the pure GSF.

But in the picture it does look GSF'y