Do not buy from the traveling fish wagons, I'm down in Tullahoma with a 1/3 acre pond and I bought a few hundred RES last year from the fish wagon, lots of BG and a few GSF mixed in. I did not want either of those in the pond initially. I've been trapping out a few GSF, but I know it's a lost cause. . just hate to kill everything off in the pond at this point so i'm going to let it go for a while and see what happens.
What a drag. Well, thanks for the tip; I will stay away from them.
