Sump Design?

[bryanong]

I have noticed that my reefers had this kind of sump design but I read in Melev's reef website that this kind of arrangement has no benefits as the micro fauna (copepods, amphipods and more) that you hope to send up to your display tank as food are going to be skimmed out of the water before they ever reach the Return zone. He suggested using this arrangement: Skimmer -> Refugium -> Return. How true is this? Can anyone advise?

[ervine]

I am running just that, skimmer, fuge, then return..

logic being that the skimmer will pull out the inital gunk, the fuge will purify the water before the final return...