I need some advise on the design of my sump / refugium. I have a 90gal tank with a 1.5 hole drilled on one of the ends. My original plan was to have the first chamber be the refugium, the next be the sump w/ skimmer then baffles with the water being returned by an AMP3k. The problem with this design is all the refugium water will pass through the skimmer. Any suggestions?