Leaves curling upwards

Strain: Critical Mass, Regular
Indoor grow
Vegetative stage, 5 weeks old
Plagron power roots 1x a week; 1ml in 1l water (given twice)
Plagron terra grow 1x a week; 2.5ml in 1l water (first feed yesterday)
Adjusted water pH with white vinegar to 6.5-7.0
Soil: Plagron light mix
18h light schedule, approximately 30cm from light

5-6 days after transplanting from bad soil, I noticed slight upward curling of the leaves. I adjusted the light height, gave water and nutrients but 24h after, there is still curling. Will this disappear or is there something I should do?


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Hello, my friend, and welcome to the Community! How did you adjust the light?

It looks like she is stressed because of all the changes, but it’s important to be sure that the light is not damaging the leaves with heat.

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In my experience it’s related to potassium more than likely it’s too much

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What temp is your tent?

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Hi all, thanks for the response :sunflower:
After a week, the leaves seem to recover ok. There is some slight curling at the primary and secondary serrations, but not the entire leaf as it was before.
My tent temperature fluctuates from 22-26 degrees celcius. Humidity 55-69%. I even have a dehumidifier in the tent but it seems very difficult to get the humidity down enough, which is kind of annoying. Especially after watering…

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