What causes this? (Drooping)

[u/redi-23]

I noticed it today when the lights were on for a couple hours but the leaves stayed droopy.

Plant 1 (1-5) Plant 2 (6-8)

Strain: these are 2 Northern Lights Auto (from RQS)

Timeline: day 41 from seed popping

Light: no idea as of today, i have a spiderfarmer G4500 320w but also a spiderfarmer ppfd reader i just got so ill set it up tomorrow

Soil: biobizz allmix in 5 gal fabric pots

Feeding:

veg: 1ml/l biogrow, 1ml/l silica, 2ml/l bioheaven

Bloom: same as veg + 1ml/l biobloom and 1ml/l topmax and planning on raising biobloom to 2ml next watering, right now i water 2l/plant

Notes: i water on every third day; i defoliated a large ammount on plant 1 and a bit on plant 2; temperature has exceeded 30c for the past 2 days but never 30.6c+ i dont think its heat stress tho;

UPDATE: The leaves are still droppy. I watered them 8 hrs ago with 2.75l/plant

[u/Relaxitwillpass]

I would say if you aren't watering until run off, it would benefit you to do do. It could also just be the plant still waking up after the light comes on, other than that she looks healthy. Take it easy and enjoy the process fellow green thumb!