Didn't think it was worth starting a new thread so I might as well ask here,
I'm undecided on what I should get for my tank *200L 90D 60H*, I've got 2 options - Buy two 150W metal halide fittings or buy another 4 foot T5HO twin tube fitting, Would two MH's be enough to cover the lenght of the tank and the huge depth?
I like the idea of having a bluish colour and a "shimmer" in the water but If the 2 MH's can't cover the required distance I'll have to stick with T5's....