Theo i agree threadfin and gizzard are the only shad i know of and they both thrive in Tenn.However what ive been told is threadfin shad in farm ponds usually dont do well once the water temp hits 40 degrees.My main objective with the threadfins is for my HSB since they are a smaller forage fish and my HSB only average 14 inches.Gizzard shad would probably be to big