Roger, is 9005.140 the 9010 skimmer cup?
i am thinking of getting it for my 9015 to skim more agressively.
I know the 9015 is rated to be a stronger skimmer, but the way i see it, if the cup is shorter, it will collect more foam than the 9015 which has to push the foam higher up before being exported.
As a mater of fact, i would think the 9015 is probably a weaker skimmer and the only advantage would be that it can last longer between cup cleanings.
I noticed that even if i dont feed my tank for a week, the skimmer continues to pull out the same amount of skimmate leading me to believe that those nutrients must have been in the water from a few days ago but were just not skimmed out. My glass also continues to grow a film of algae every day or two and i only have 6 fish. I feel like this skimmer should be doing a better job and I am wondering if the shorter cup of the 9010 would make it more aggressive.