Well, I finally broke down and bought a new protein skimmer...man, is this thing massive! It takes up my whole sump. There are no real instructions with it, however. My question is that it says the large up-tube should be almost all the way up for initial break-in, which it is now in. Do I ever need to lower this tube? Any other adjustments I need to make? I't only been 24 hours, but it has skimmed nothing (just like my seaclone). Any thoughts?