Leaves curling upwards. Closing up.

Just saw your working autos. Never got into auto much but if they were photos I would call it pre flower stretch and move on. I always think about how the plant grows, kinda like unfolding from the upper most growth. And during stretch this process is accelerated, sometimes causing this folded upwards reaching thing.

Moflow said:

@DoubleAtotheRON I think I remember you gave your plants quite a high pH to sort out low pH problem

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Yessir... here's the link to the thread... https://www.rollitup.org/t/hard-ph-corrections.1046732/

green_machine_two9er said:

Some of what I saw earlier looks like normal activity during “preflower stretch”. And it typically only happens during lights off.

don’t over react on this one and cause other unrelated issues.

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The first pictures were taken before lights going off tho. I see your point but watch the pics in the original post, the curling was severe, i doubt it was normal activity... The new growth pointing up might be normal like what you say, just new growth that stretched a lot in the last 24h..