I needed a sump, and since this is what I do best, I built one. :)
The sump is 58" x 31.5" x 17" using 3/8" cast acrylic. The refugium zone is the full length of the sump, 6" wide and lit with a LED fixture made by Unique LED Lighting. The layout is simple, basically three zones: Skimmer section with bubble tower or 7" filter sock when the need arises, the refugium zone, and the large return zone for the heaters and reactors. Two 1.5" bulkheads with 5" strainers feed the twin Sequence Dart pumps.