My gut tells me I'll be fine with these lights to start. Realistically with a 2" sand bed, and the tank isnt full to the brim, I'm looking at just under 18" of water to penetrate through. looking at a chart needed for coral growth, mushrooms, zoo's and soft corals need 50-100 PAR (bottom of tank) LPS, clams and some SPS need 100-200 PAR (top of tank).
If I decide on going SPS, I'd need more lighting but also alot more other things would have to get upgraded or installed!
Last edited by arminkropp; 01-15-2013 at 02:01 PM..