keep in mind that i dont have any experience with these skimmers, but one of my LFS uses them and when i was checking out their sump system the thing was pulling out some real nice skimmate. the marineland skimmers have the pump built-in under the reaction chamber so it make the footprint super small. they are needle-wheel skimmers, which IMO is the best system for the $ you spend. you could do some research on them and see if they fit the bill.