I have the 125 as HOB for now, because I don't a have a sump yet. I think you would just need to have intake tube to the pump long enough so that the pump is fully submerged by 3-4" below the water level in the sump. It should work fine, plus you have a lot of options for the water return back into the sump. You can do basically anything with 1" PVC pipe - it will fit right into the oulet. You can have it dump back anywhere in the sump that you want to, or T it off to a refugium. There's lots of possibilities there. _________ |