pre-flower

3 of my 5 plants hermied on me, all of them acapulco gold. This happened about a week or two after I flipped to flower. There's plenty of reasoning behind why they did, but that's not what I am here trying to figure out. I decided to use optic foliar switch to try to stop the problem (on top of...

hi guys, when do I switch from mh to hps bloom lights? Before or after stretch? There seems to be different opinions. What is best? Any advice appreciated