My fan leaves are making a funny shape

Hey guys, I’ve noticed my fan leaves are making a funny shape. What could be the cause of this?

Week 3 of clones,
First week accidentally poured 200ml of calmag with water the first week. Two of them died out. Tried flushing them a couple days after.

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Looks like nute burn… Wat kind of soil?

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What temp is your grow space at? The leaf cupping is usually a sign of heat stress

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It was at 93-98 degrees at one point when i had the HPS light. Switched it over to LED went down to 83-85 degrees

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That temp is still a little hot try to get into the mid to low 70s that will be ideal…

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Worrrrd… Question is… hoooooow now lol