So some fun history...
I used to really push algae scrubbers.
http://algaescrubber.net/forums/showthread.php?2545-Generation-4-ATS-build&highlight=rygh
In fact, I was one of the first to have real success with LED, way way back.
But ... I have backed off a bit.
The big problem - they work a bit TOO well.
Your nitrates will plummet, and your corals will starve if you are not careful.
So I had turned mine off and switched to Vinegar dosing.
Although after my tank reboot, my tank was full of hair algae and nitrates,
and I pulled it out of the box and cranked it up again.
Now I am thinking of shutting it down again since tank is looking good.
Or maybe making a half size screen.
ALSO: You need to clean more often.
That is WAY too much buildup. The dead parts slough off and really add to detritus.
Clean weekly or at least every 2 weeks.