My setup is a 50 gallon reef. Here is what I have for lighting, my fixture is a Finnex HO 36" T-5 4-39 watts setup which includes 2 Aquablue+, 1 Actinic+ and 1 Pure Actinic.
It was suggested to go with a 175 watt metal halide instead but if my reef is doing well (all SPS corals) is it necessary...