An aquarium light is an important part of a fish tank. Even though to some it may just seem to be something to give a little extra light, for the fish the kind of light included could mean increased health.
The kind and luminosity of the light within a fish tank depends a lot on what a person plans to keep in his tank. Depending on what kind of fish you have, it may be best to search to find out what kind of aquarium light would be best for them.
The most typical kind of light that is used in most of the smaller tanks owned by first-time fish owners are typical fluorescent lights. These lights usually range anywhere from between 15 and 40 watts. These lights are preferred by many because they are cheap to use and replace.
Although this may be the right kind of light for your tank, it is possible that it is not. Think about the depth of the tank, species include therein and the rate of growth you would like to see. If these answers are aggressive, you may want to find another kind of light that may better serve your purposes.