Well, I think that I would rather go ahead and purchase a pre-made rack system instead of building my own for now. In that case, I wanted to know your opinion. On RBI's website it says that the Iris CB-70 rack system is ideal for adult BP's, and it's 30.6 qts, and then they have the Sweaterbox rack-30 qt low profile. My delemma is that I already have two BP's and I'm planning on getting more in the near future. The Iris rack only has 3 tubs, and as I already have two snakes, I would like a rack system that had more available tubs, like the sweaterbox rack which has 5 tubs. Since both tubs are 30 qts, would they both be ideal for Adult BP's?