lighting depends on what kind of corals you want. softies such as mushrooms and zoanthids, etc, only need basic PC lighting. LPS need better PC lighting or better yet T5 or metal halide lighting. some SPS you can get away with T5 lights but its better to get metal halide. clams definately need metal hilide lighting. look around for some pictures of tanks you like, or look through the corals page to the left of this screen, and list what you like. even if you only want to start with softies because theyre easy, you may eventually want to try LPS or SPS, so its better to buy a nicer fixture in the beginning rather than having to upgrage. trust me, i started out with a crappy PC light, and upgrading is a pain.