For more information on lighting & your Saltwater Aquarium,
Here are a few other SaltwaterAquariumBlog posts on Aquarium Lighting that you might like:
I have seen good reviews for LED lighting for aquariums, with people mentioning they use them for saltwater. Do they generate enough of the right light for happy live rock and whatnot?
The 14,000K spectrum is a very white light that gives a crisp blueish-white tint to the water. Most aquarists prefer 14,000K over 6,000K T5s for the look they give their saltwater aquariums.
Light Fixtures for Saltwater & Reef Aquariums - Marine Depot
Light Fixtures for Saltwater & Reef Aquariums
If you have a fish-only aquarium, then the answer to this question is easy—you change your lights when a bulb burns out, if you no longer like the look of the light, or if you begin to have issues with problem algae. If all you have are saltwater fish in your aquarium, than there is really no need to worry about when the right time is to change your aquarium lights–because nothing in your tank (besides coraline algae perhaps) depends on those lights for photosynthesis. So change them whenever they become a problem, they burn out, or you get sick of them. Saltwater reef tanks with corals, clams and other light needing organisms will need the high output, very high output Fluorescent or metal halide lamps. Certain corals, anemones and clams require very intense lighting levels that can only be provided with T5-HO, VHO and metal halide light sources. A general rule of thumb for reef tanks is between 4 and 10 watts per aquarium gallon. Many reefers have lighting systems incorporating metal halides and VHO Fluorescent tubes. Research the species you want to keep because light requirements can vary. Because of the amount of heat these light units can produce, you may need to get an aquarium chiller to keep your tank water temperature in an acceptable range. The expense of lighting a reef tank may be just as high or higher than the cost of the live rock or even the price of all the other equipment combined.If you have a reef aquarium (an aquarium with photosynthetic corals or clams), then you will want to adhere to a routine schedule for changing out your aquarium bulbs–continue reading below to see how the other factors affect when you should change the light bulbs for your saltwater reef aquarium.The 24-inch Coralife Aqualight high-output T5 dual lamp fixture model 0 produces twice as much light as other aquarium lights, making them a good choice for reef aquariums with live plants. The high-output lamps use electronic ballasts that allow them to produce more light while using less energy. It has a compact design that allows it to take up less space without compromising the power and intensity of the light. Additionally, it has a reflector that helps direct the light and minimize the amount of wasted light. Adjustable mounting brackets allow it to fit on a variety of aquariums. The aluminum housing reduces corrosion from salt water.