Ahh the tubs... I've been talking about a tank room since we moved in. There happened to be a huge close (92"x102") just behind the wall the tanks are on/near (bedroom closet) that Jenn let me have when we moved in for this purpose. I finally got most of the plumbing and have done some work on the closet to make it ready (trying to waterproof as much as possible, as well as dedicated electrical outlets and the like). I'm planning on connecting the 125, 120, 22, and 40B into one system with the 150 tub, a 50 gallon frag tank (to be mounted above the two big tubs) and the 100gallon tub (or a 150 tank to make the sump area easier to baffle). I'm working on dry fitting now...