I have Current USA 4x65 (2x10K, 2xActinic) in a 48" fixture over my 120g tank. 2'ish watts per gallon. My LFS that sold this to me told me that I'd be able to keep a good variety of corals with this. Seems to me that 2'ish wpg isn't really very much light at all. What could I actually keep with this amount of light?
What do I need to do to get this tank up to the 3-5wpg range? Do I add another light? Do I need to replace this light with a MH? Everything I've read about the MH suggests that it needs to be high up off of the tank. My tank hood is only 5" deep or so. Does that mean that MH are out of the question?
What do I need to do to get this tank up to the 3-5wpg range? Do I add another light? Do I need to replace this light with a MH? Everything I've read about the MH suggests that it needs to be high up off of the tank. My tank hood is only 5" deep or so. Does that mean that MH are out of the question?