I have a 240 reef tank with limited space in the stand because of the bracing in the center. I am using a rubbermaid roughneck tote that I believe is 32x21x13 inches tall. I have a smaller rubbermaid tote inside that houses my msx 250 skimmer. The overflows drain into the skimmer section which I plumbed a drain at 9 inches(recommended water level for the skimmer). That water drains into the outer tote that houses live sand, live rock, chaeto, and a mangrove. The return pump sits in a rubbermaid tupperware container so no sand or chaeto gets sucked in. It actually works pretty well(make sure you don't just use standard rubbermaid bins as they will fail over time. The main reason I run my set up like this, is because my skimmer footprint is to big for my acrylic sump. I may make a new acrylic sump/refugium down the road, but if it isn't broke why fix it. I have some touchy corals and fish that are flourishing with this setup. I'll try to post some pics later