Hey guys, 5 plants in a grow tent/closet, all from random seeds out of bags slightly over a month in veg and I'm wondering when I should switch over to 12/12? Of course I'm looking for over all quality and quantity so I really wanna know the exact correct time to switch the schedule. I have 3 plants all about 18-19" in height. One plant around 16" and another around 12". From the growing medium (soil) to my 600w HPS light it is just under 4 ft around 46". I wanna keep plants around 12" away from light so they could only be 34" in height! I plan on developing some kind of ScroG screen to utilize horizontal growth as well. So should I flower now or wait it out another week or two? Not sure what they are but I've heard some Sativas will triple in size! While that's good I don't want to have a problem on my hands, any advice is appreciated!