Oh no I understand. I have just temporarily switched to flower lighting (12/12)
Oh no i understand. Ive only switched to 12/12 so they show their sex. Not to flower. I plan to switch back to veg lighting right after. I just want to weed out the males early on so i can save space/ nutes/ soil and time. Ya know?Mainlining is a veg technique. So if you wait til they show gender the. Switch the lights back so you have time to stress train them for a month or more....
the other guy is right about the second node but not regarding timing. You are supposed to cut back to the second node to start your mainline. This can be done whenever in veg. If done in flower you will just fuck your shitup.