First Indoor Auto Grow

This week I started feeding it a small dosage of grow and root nutrients. The new leaves are strangely curled and I'm worried I may have positioned the light to close (around 20-25cm away) and she suffered from heat stress. I raised the light to about 35cm away to see if it helps, although I'm still uncertain whether the heat from the light is the problem. I hope it doesn't impair the growth too much. I plant on starting LST in a couple of days, as soon as she grows big enough to bend her without snapping.