General Reef Discussion
My 90G tank has 3 T5 bulbs over it. Two are 10K, one is Actinic. They are two fixtures, a dual bulb/single reflector and a single bulb fixture. It is nowhere near enough light for my zoos, mushrooms and polyps. The tank is 24" deep.
My 10G holding tank has the 13W PC bulb canopy that came on my...