I'm making plans for lighting a 225G, 30" high tank.
I'm think about mounting a 72" 2-160W VHO light fixture and 3 DIY 400W Metal Halide lamps within a DIY hood. (1520 W - 6.7W per gallon)
1) Would this be enough lighting for a 30" deep tank?
2) How high should the MH lamps be mounted above...