Why is this happening?

Hi everyone, can somebody please give me an idea on why they think this is happening to some of the girls?? Thanks

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No need to start a new thread.

Looking at a single leaf I’d guess low RH

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Usually edge curl is low humidity as slammedsonoma said, it can also be caused by a fan blowing constantly on certain areas of the plant, so if its only affecting a small area of the plant check your fan is not constantly blowing on it.

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