I'm in the Process of setting up an Octo Tank, and was wondering if there is a way I can run a Skimmer with no Sump below the Display Tank. I've heard the only way to run a Skimmer externally is by having it above the water Line. My issue is that the Tank is a Unique Shape, and there is no way I can accomodate a sump into the stand below the DT, but I would have room to have a skimmer Only. Any Ideas?