Btw this is how the pros roll:

http://www.youtube.com/watch?v=0swLeG-NsLg

I nearly choked laughing when I saw that thing!

Wow, i've heard to keep your cheato rolling (mine doesn't). This takes that to the next level. Probably great for nitrate reduction though.

24/7 for the Chaeto in my fuge. Not worried about going asexual or pH swings, maybe too simple but thinking was increased photo-period = increased growth = increased nutrient export.