Pineapple Express & Gorilla Cookies

Okay guys, this is getting serious! These babies are really awesome and healthy. I have been adding water every 24 hours now, and nutrients once each two/three days. One of them area already in pre-flowering. I believe all of them will be as well during the next week. This is also the last week I am giving Blue LED. Next week (week 5) I will be starting giving them Red LED, to help them to flower better. I could give them full spectrum, but I have decided to try out this technique of giving them first Blue and then Red. Also, I think I will give them a soft LST next week. What do you think? Would you LST an autoflower? I have heard you just have to let them do their job. Looking forward to hearing your opinions. Thanks guys!