that foot print is very small....a tank your size is going to need a significant skimmer. especially if its a medium to high bio load. many on here have stated the octo extremes. they are beast skimmer. great bang for the buck. there are other good skimmer out there. but octo's seem to have the edge. but with a foot print that small, not gunna happen. someone mite chime in with an idea. any thought of upgrading the sump to accommodate a larger skimmer, fuge, etc etc.....