Just to drop a quick note concernign the Gen X 2400...If oyu remember I had some troubles getting lots of bubbles from it, I tried a few things, other than actually making the venturi hoel bigger. One that worked was adding a very small air pump going into the venturi tube, this increased the skimmate, a little. I tried 3 different pump sizes, but anything bigger jsut was too much and created too large of bubbles. So, today I got my ASM G2 with Sedra (Still have to figure out a way to make a skimemr cup, as it is broke, I have the Oring and snap.screw part, so any ideas?) and man, what a difference! I am totally convinced the "MAGIC" is within the Sedra needlewheel pumps. The Genx worked, but didn;t even come close. Pieky, hoepfully you can mod yours out to do better than mine, but if you can, I would seriously consider returning the Genx and getting the Sedra. I am gonan try the Gen X on a regular smaller venturi skimmer and see what happens! Or I will use it for a return pump. Good luck, I think we are all curious as to seeing your bad boy in action very soon1!