I have a FOWLR with two (SO) florescent and I was thinking of adding some Metal Halide lights.
My question is I have some of those yellow industrial (MH) work lights (150 watts), could I use these for my tank?
Check out the spectrum, odds are its below 6500K and would promote unwanted algae growth. IMO 6500K is too yellow for my tastes and even those would need to be supplemented with actinic for looks.