I'm in the middle of installing baffles and just got a few ideas that put my project on pause. I'm working on my 75 gallon tank and have a basic 75 gallon wooden stand that measure 16x46x25.5 interior. It limits me to 20 gallon long sump/refugium... which is smaller than I would like. To utilize the small area I have, I came up with an idea to maximize space and would like input. My initial goal was to create a four section sump/refugium (skimmer, bubble trap, fuge, and return). Now that everything is coming along, I'm thinking of doing three (Skimmer, bubble trap, fuge) with the return pump in the fuge. My thoughts: Not sweating anything at the moment since I want to do a BB fuge with just LR and macro algae, so I don't have to worry about anything damaging the return pump. To take precautionary measure, I'm thinking about installing an 'egg crate fence' around the pump to prevent macro algae from getting sucked up. This would give me a larger fuge area (roughly 7.5 vs 4.9 gallon fuge). I know the advantage of a return section is to control evaporation and avoid micro bubbles. This mean my fuge will experience evaporation, which shouldn't be an issue as long as I top off the water, right? The return pump will be at the every end of the system. After the bubble trap and large surface area, I doubt any bubbles will get sucked up to the DT. Any thoughts? :-/ Visual: (Not my design) Going for the same schematics below minus the baffle between the refugium and return pump.