works great just make sure u mark and drill out qtr inch size holes along the water line the divider only comes with holes on the bottom which does allow enough flow.I saw the Octo divider and was wondering if any Waterboxers had used it. Was thinking of doing the same thing at some point...making a refugium by dividing the area with the skimmer. Sounds like a refugium was a good choice? And I'm only 5'4"...lol...so a perfect height for me!!!!