Well done gf great concise article, i think it covers a lot of ground on lighting and i know for definate it would have helped me in the beginning, but i can still see myself referencing back to it occeasionally, and i knew id learn something new, i never knew or even seen reference in all my reading on planted tanks over the last few months the reason why darker leave plants photosynthise better.
Oh yeah and it clears up the mystery about T8s as well.
Well done, great job.
A very good starting point for everyone new or old to planted tanks, and i would say the hit rate on it will be huge within a couple of weeks.