Lighting on Sump/Refurgium?

[Twisted-1]

What type of lighting is best for my Sump/Refurgium? I have a PC light I plan on using on it (65 watt) but is there anything else that I can use on it? Is this overkill for a Refurgium. It is mainly for macroalgea growth.

So in general what types of lighting works on a Sump/Refurgium and how long do I keep the light on? I have been told to keep it lit 24 hours a day. Just wondering how others have set up their lighting.

[DanG]

if you can find a 6500k bulb, your macro will grow like crazy. Depending on which algae you're growing, you may or may not want it lit 24 hours a day, some will go asexual and reproduce like crazy if the lights go off. If you do only run the lights for 12 or however many hours a day, run it opposite of your tank so it keeps your pH more stable.

[midgetwaiter]

The best results people talk about have been with floodlight style lamps. Either fluorescent or halogen the internal reflector makes a big difference focusing the light into the fuge. A regular spiral fluorescent at the right colour temp (Philips Daylight are cheap) works too but I got way better growth the the floodlight.

Here's an article:
http://www.melevsreef.com/fuge_bulb.html

I use a 75w Philips Natural Daylight halogen from HD and it works very well, pretty good colour on it, I'm guessing around 4500K. It was only about 10 bucks but it throws a lot of heat so the fluorescent is probably a better choice.

You can order the bulb that melev uses from here:
http://www.lightbulbsdirect.com/page/001/PROD/Reflectors/1P381951

I'm changing up some of my FW tanks soon so I've been thinking about getting some and I think someone else was talking about them recently as well.

[Twisted-1]

Thats a pretty good light. I wonder what stores in town would carry them. The 51k style.