just a note ace. I didnt have much luck at all with mine until I switched to the 27w CFL, I had 23's in there and didnt get much going.
I also initially made my screen as wide as I could and stillg et the 350gph over the screen. well I apparently didnt have enough flow to really grow all that well so I made a new top pipe with slot that was 8" instead of 11 and within a week I started seeing alot more thick algea.
Still not seeing as much as most people show but I have zillions of little pods now and my phos and trates are still at 0 for the 4-5 week in a row now.
Unfourtunatley its not enough growth on the screen to out compete the GHA I have in the DT so I might have to change some things or break down some of my rock so I can scrub it down.
Just some thoughts