Lst ?? should i start now or wait another week or 2? they are 16 days old

The leaves just started to curl upwards! what does that mean? they are about 3 1/2 inches tall

thanks for any tips!

LST from the beginning is fine actually I think it's better to start early.

I bruise, crush every young stem to break up the fibers, when they heal you will get strong woody stalks on young plants.

Dogenzengi said:

LST from the beginning is fine actually I think it's better to start early.

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its a lil difficult because they dont have much height and the leaves are bunched up right now

i start LST after the 2nd leaf.. i use pipe cleaners to pin them to the ground. i use the joined end of tweezers to pull out anything.. you have to be careful http://www.autoflowering-cannabis.com/tie-down-low-stress-trainin.html

I lst when I grow photo strains outdoors and start around the 4th node. As for the curling id say maybe heat issue,are your lights too close?.