Aquarium light fixtures range from a single plain fluorescent tube to combination metal halide and very high output VHO fluorescents with very high price tags. For your first tank you can get by with the simpler equipment. Here is an overview of the available lighting options for your aquarium.

Fish-Only Aquariums
An aquarium that is not going to house any live plants can be illuminated with a standard aquarium light fixture, usually housing a normal output fluorescent tube that enhances the natural beauty of the fish.