Agree given the shape of the tail it is likely a carp. There are goldfish and carp/goldfish hybrids in Lake Gurley Griffin and our other waterways that can look very similar to carp. Ill post a picture of a recent carp goldfish hybrid shortly.
Well @AaronClausen, I was at least 99.0% certain, so I had a red hot go. If you don't agree with my confirmation, please help me improve by confirming the correct species.