Help setting up a new 220 gallon reef tank!

[Richard Hershkowitz]

Hello, I currently have a 55 gallon mixed reef tank set up with a canister filter. I have bought a used 220 gallon predrilled tank with two overflow holes already drilled in towards the top on each side of the back. I currently have a bare 75 gallon tank that I am going to make into a DIY sump. I wanted to know if I should have both of the overflows equal the 2200 gph recommendation that I have got and them for a return pump should I have it flow over the top of my tank and use this LOC-LINE 3/4" ROBO ARM Adjustable Dual Return Nozzle for Aquariums w/ Flare Ends? For my sump I was going to drop my overflows into filter socks with live rock underneath have it go into my protein skimmer and then a refugium zone a bubble trap into a return that I was wanting to have around 3000 gph in order to not run it at full capacity. I am custom building the sump and the stand so any suggestions would be greatly appreciated! Thanks in advance!

 

[cvrle1]

Your rate to overflow shouldnt be that high. 10X was the norm before, but that has come down. Majority of people aim for about 3-5x turnover rate to sump, and depending on what the want to keep they will aim for DT turnover as high as 70X (yes that is seventy) Critical things for flow into the sump is that temperature is maintained in the display, that enough water flows over the overflow weir to effect adequate surface skimming and that you can get all extra nutrients into the sump.