I just go in for the photoperiod switch. I use to a while back place in dark prior to flowering but there was no scientific fact that supported what I was doing made the photoperiod change less stressful on my ladies.when switching from 18 / 6 to 12/ 12.......do u do it gradually or just go straight to 12/12....
They're going to stretch anyway, may as well make it easy on them.The nitrogen will feed the stretch.
Looks great, I wish I was able to grow outside but I just don't have the space.