Melonbob
Reef enthusiast
I thought I read this somewhere here. I have cut back on my lighting, and it's really taking care of the cyano and green hair, pretty much gone aside from the back glass. However, I'm left with this green flourescent covering on my rock, its hard and looks like coralline, aside from the fact that its bright green. No dust, hair or slime, just hard green algae. You can see it in one of the pics in my build thread, but I'll post some when I find the camera