Heres my scrubber, built from a old HOB filter and theres still room for a filter pad, carbon or other. I'm not getting much growth, just some yellow, although I do get some nice green hair at the bottom of the screen, that is submerged. Using a MJ1200, screen is 5wx6, and bulbs are 19w, 12hrs on, 12 off. Started with 18/4, but didn't see much growth, so went to 12/12, and still the same. Reflectors are shiney(hard to see). I also have a ball of chaeto that is turning a pale green/yellow.
I feed 1 pinch of pellets, and just started feeding a couple tablespoons of phyto everyday. Are my bulbs too bright? Flow to little? Screen not rough enough? Its been about a month, and no green. Pics are after first cleaning.
Thanks