posted by melev ---- The floodlight I'm using works great. I do keep it on 24/7 because I just didn't bother to put it on a timer. It uses 19w (an hour?) and the plants seem completely unaffected by the continuous light. Matter of fact, I don't know that I want to try turning it off, with the excellent growth I get. I pruned (or fragged) my Cheatomorpha 4 or 5 times in the past month for others, and last night my refugium was a packed brick of Macro algae again!