This is my first grow and it is still a learning experience. I'm not exactly using high powered lighting (Flourescent tube lighting) but I am getting some decent looking buds with lots of trichomes (the little hairs) which are mostly still white but some of them are starting to turn orange/brown color. My question is, is it true that when 75% of them turn brown that you're supposed to harvest the plant? Does anyone have any input on this so I can makes ure that I harvest it at the right time?