Tom-

FWIW I owned a "Lux meter" back in the early 90's to record levels at different depths in my reef aquaria, but I dont qualify as a hobbyist. At that time i was a retail saltwater store owner.

So after digesting 70% of this technical thread data, and feeling very sleepy i have a really EZ question for you. Do you prefer fluorescent (regardless of type) or metal halide, or both in combination. Dont over think this question as it pertains to different planted aquaria etc. just looking for a general answer ( ie your opinion.)

Im a dinosaur saltwater guy, and a plant tank newbie (in progress) Thanks for the forum, its exactly what i was looking for.