anyone use an algae scrubber? (not magfloats)

[monocus]

i installed mine a few days ago and my nitrates fell from 90 ppb to 69 ppb and my phosphates from .2 ppm to .16 ppm.i've always had high nitrates and phosphates to feed my carnations and probably from my eels-but in about 4 days a good drop in my readings using hanna checkers.i didn't have a lot of room in my sump area so i made a 12x 18x4 "tank" with a bulkhead drain to flow back into my sump;that sits on top of my sump.i already had to use a pump to pump back water for my protean skimmer so i plumbed it into that-no problems.i only have 1 light shining on the 12x18 screen right now as i'm waiting on a driver for the leds i built for it(as i said i don't have a lot of room).the light i,m using right now is a compact florescent in a trouble light housing.i want to compare algae growth between the two sides and go from there on what lighting to permanently use