Hey guys and gals. It's been quite some time since I have been on the site. Work has been taking up alot of my time in the last few months. Haven't had the time to update as often as I liked. Within the last week I found the bigger, quieter, rental property, I had been searching for. Therefore, to make the move less troublesome, and scratch my "I want a bigger tank" itch, I bought a new 125 gallon, 72" long, Aqueon Tank and stand. I want to drill my tank this time. Two overflow boxes seem like too much trouble for a tank this size. With this tank, my only option is to drill in back. (Bottom is tempered). I want to drill the back of the tank anyways, to allow as much real estate, as possible. My scrubber screen will have to be 12.5 inches wide, with a flowrate of at least 450gph. I have read about setups, with more holes drilled in the back, to allow more flow and eliminate the need for circulation pumps on the sides and back of tank. I just don't quite understand how those work or if they are very practical and work well. How would the pros, here at Living Reefs, deal with a new tank like mine? This new 125 will be my main tank and I want to be sure I do this the right way, the first time. I'm open to all suggestions permitting my 460 gph scrubber, drilled in back, with the most efficient circulation possible. There are so many options out there and I feel my brain spinning in multiple directions. I don't know where to go from here. Any help, tips, advice on plumbing, sump tank size,pipe style and size, would be greatly appreciated. I think know what I want after I get it flowing.