Thank's Bob for the reply but what I think he want's to do is make one large tank that will hold several very large catfish. The twin tanks at this time would have them curled around the tank. He now has a large stock tank from Tractor supply in the boat for this purpose, pumps aerators etc. There is a fiberglass pool factory up the road here in Albany that I will contact next week.
Just for the info these catfish tournaments are catch and release just like the Bass guy's the only difference is it may take over 200# to win.