I've been out of commission for a while, (got married, bought a house, etc) and the time's finally come to setup the tank. I'm still planning for everything, as I need to clean out the garage and get it ready for the tank. This is what I'm planning on doing. Main tank will be my 90 g 36x24x24,... That'll be in the basement. On the other side of the wall is the garage. The 90 will drain into the 45 (24X24X16). In there, I'll be installing my vortech skimmer. I'll use about a thirfd of the tank for a 7" DSB. On top of the sand bed, I'll place frags. The 45 will then drain into the other tank (sump) which will have my filter sock, heaters, media reactors. I'll also be placing Chaeto in the middle chamber. I'll setup the RODI auto topoff here as well. That'll get pumped back up into the main tank. Any thoughts on the setup? I should be starting the plumbing beginning of next week. I'll take pictures of the process. I have a question... In the 45g, do you think I'll need a powerhead (or 2) for extra water movement?