My girls are 3 weeks 3days old (guessing) and about 4 nodes high (would be 5 now but I topped em). How long before I can do 12/12 and start flowering. I have 135W of Cfl(I'm workin on geting an HPS) I dont have time to let them grow big like I wanted as I may be going to mexico in january. I dont really care how much I get out of them as I'm just geting a taste of growing, I enjoy it mostly. I just dont want to take them, and my growroom down without getting somthing out of it. oh and how long will it take to flower them?