Gregcoyote
Aquarium Advice Addict
mr_X said:It's not the equivalent of a 400 watt halide, per my PAR numbers. 125 on the sand bed is 125 on the sand bed. Just because his tank is shallower front to back doesn't mean the intensity will be greater on his sand bed.
Yes but on a 55 there will be a lot more overlap from the two fixtures. Suits me as it isn't worth debating. Carry on.