Brown and curling leaf

Below is my white widow auto. I woke up this morning to my leaves browning. What could this be?!?

If you’re using nutrients, you may have gotten some on the leaf while watering. If it happens I just take a paper towel and dab it dry. Shouldn’t be an issue though

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Same thing happened here I was curious to what it was but I know I got nutrients on the leaves some of my leaves looks the same way

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