im running seedsmen lemon auto skunks in fox farm coco loco using Gaia green 4-4-4 /2-8-4 as well as worm castings for a top dress I was watering every other day when the pots were light about 2 L (about 1/2 a gallon) i Am in week two of flower. I came home on Monday to find my plants clawing from the stem down pots were dry and light so I watered them ( 12 hours after there regular watering) the next morning about an hour after the lights came back on they perked up and were looking good came back home that night same thing. i thought maybe my RH was to low being at an average of 20% so I put my humidifier back in now running avg of about 50% thought it would help the stay moist longer. After that I let the pots dry out for two days before watering again and I’m still seeing clawing.
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I don't see any clawing, which is often a sign of nitrogen toxicity. Are you talking about the edges of the leaves curling up? That's often a sign of heat stress. What temperature are you running? Also, what grow light are you using and how far away is it from the top of your plants? More info: https://www.mrgrowit.com/post/heat-stress-in-cannabis-plants
For anyone who doesn't know, your plants will "wake up" in the morning and "fall asleep" at night. It's typical for leaves to droop for an hour or so first thing in the morning as they "wake up", and also droop for an hour or so before lights out as they "fall asleep". They grow accustomed to your light cycle. Hope this helps all, good growing!