Just wanted to tell you folks about my recent bulb purchase. I dropped my fixture and the bulb broke. It was a really old, quad-tube, square pin 96-watt 10,000 K lamp. I really wanted to replace it with a 6700 K bulb, but it was hard to find.
Finally I found these folks:
www.naturallighting.com. They're in Texas, and the bulb arrived the next day via Priority Mail, was very well-packed and everything. My plants are soooo happy. Now, where can I order tiny sunglasses for my fish?

I've got 96 watts over an 18-gallon high tank. Crank up the CO2!