I am confused about what type of hood/light fixture to get for my tank. I don't want to break the bank buying a light fixture, but I would like a light that would allow me to raise a broad spectrum of corals. Should I buy a regular glass top for my tank? If anyone could recommend a specific hood/light fixture that would be great. I'm brand new to the saltwater aquarium world...actually to aquariums period...so any advice would be appreciated. Thanks!