How tall should the plants be before I turn the lighting cycle to 12/12? And at what height should they be when it's harvest time? I've heard that if you leave them in total darkness, the last 2 weeks, the plant goes into a defensive stage. That it will totally crystal up, almost to the point as it looks like it was really powered with sugar. It's supposed to make it more amazing than it already is. Have you heard of this? How long should I keep them on the 12/12 cycle? I think I should keep them on 6 weeks on 12/12 then total dark for the last 2 weeks. They've been sprouted for about 3 weeks and already are 7" tall. Have some pretty big spread of leaves already!! They look amazing for 3 weeks! What ever I'm doing so far is right!!! Can't wait to harvest... Please give me some advice on this and help a fella smoker out. The more the better. Can't get too much info!!!