What kind of things are you wanting to keep in your tank? I have the same tank from Wally World, and I bought a Satellite 4x65 W unit with moonlights. It has worked great for me. I bought the light setup for $200. I just wanted to keep soft corals at first though. I have a bubble tip anemone, mushrooms, a hammer coral, zoos, and a carnation. If you are wanting to keep anemones other than the bubble or clams and such you will need much more light. Hope this helps.