is pretty low on the lighting curve. Wpg
isn't really a good method for deciding on a lighting system though. What are the measurements of the tank (LxWxH)? How much and what kind of light you need depends on the depth of the tank. If it's a 4' tank, you'll get better coverage with 55/65w PC
's than 96's. I'd hazard a guess that you could only keep the low light softies and maybe some of the non-photosynthetic hard corals (tubastrea.spp). Be warned that these hard corals require frequent and heavy feeding though. You need to think about what you really want to keep in there also. It's better and cheaper to buy the right lights first than to have to upgrade the whole system later. If you want to have SPS
corals later, PC
lighting is going to be marginal at best IMO
. I'm not saying it can't be done. There is only one absolute rule in this hobby and that is that you must have water in the tank
. Everything else is subject to exceptions.