Man, I have the JEBO 180, the generic pawn off of the Seaclone 100 - this thing rocks. I've left it on the same setting for almost two weeks now with no need for adjustment. I get about 1cm of dark green, almost black skimmate every 3-4days now (was every night for the first couple days). It could be possible that you are using too weak of a powerhead -- the generic one that came with mine is equivalent to what would be a Rio900-1000 (even tho they dont exist, its more powerful than a Rio800, but less powerful than a Rio1200). Plus its also awesome the small footprint this thing has - I was actually able to squeeze it into my 'fuge. I'll take pictures tonight.
, here's a link: http://www.aquatraders.com/index.asp...ROD&ProdID=101
$49.98 after shipping? How can you beat that?!