Once I got my tuned properly I am happy with my Prizm. Is it top of the line stuff? No. But it does pull out consistent gunk and for price and hang on the back, I'm happy with it.
I have one on my 20 gal. It's pulling well. My only complaint is that it is a little diffcult to do fine adjustment with the fow control, but once you have it seems to work well.
yeah...i was kind of leaning toward the prizm until this post. do you guys have it modified for surface skimming as well (to reduce the organic film on the surface of the water)??