I have a 1500 g. female BP and three 136g. bp's. The small ones are in 10 gallon aquariums and the big female is in a 20 gallon. I am wanting to build me a rack that I can house all of them in the same rack. My question is if I get the iris tubs with the divider can I put one BP on each side and still use the larger tubs? Therefore making it possible to use only large tubs. If not what suggestions would you make?