Yes, based on just that, VHOs or PC's would be the best way to go. Now, we're talking what kinds of corals you want to keep. There are PC and VHO systems that can fit varying amounts of wattage in the same amount of space. For example, you have JBJ, Formosa, All Glass Aquarium, etc. It really varies. If you just want low light stuff, you can get away with less expensive setups.