badcop804
Reefing newb
ok, by now everyone knows that I doing a lot of work on my tank. I am putting together a sump/refuge and need to know how much light I need for the green stuff I'm going to put in. My fish guy says to use my old VHO lights for the refuge, but those ligths are 220 watts. My electric bill is already high enough. I was thinking I could get away with using one those screw in CFL bulbs. It says it is 4100k. What do I really need? does the green stuff in the refuge need a lot of light?