Hello all. I'm new to reef tanks and have been putting together all equipment to get my 75g corner flow tank set up. I have an eshopps rs 75 sump, but found and purchased an eshopps rs 200 today. The 200 came with a pf 800? Overflow box. I currently have a 29g standard tank that I as a qt tank. My wife has now decided she wants the 29g in the bedroom. Could I use the pf 800 overflow box and slow the flow down to say 300 gph for the 29g tank?