sump turnover vs. skimmer performance

[Madmak]

I think there is a pretty wide range of flow where the skimmer will work well but too much or too little flow isn't good for anything. I match my return pumps with my skimmer pumps (about 1200 GPH) and use a closed loop (4500 GPH) for DT flow. I then only run 150 GPH through my refugium.

Seems to work well for me.