I have been over thinking the H#$L out of this and my brain has completely stopped working. But, because of the height needed for the skimmer it limits the height of the tank. Would it be possible to cut out an area from the side of the tank for the skimmer to sit? Would the baffles for the refugium dictate the water level or would it overflow from the cut out? I knew I should have paid more attention during science class and from the looks of my diagram, took an art class too!! Any other ideas? This is my first attempt at modifying or designing/making something like this.