Nutrient burn or heat problems?

consume said:

I know that my plants are having a little issue with heat. 3 of my tallest plants show curled edges, but 2 of the plants are showing this. Is this a result of nutrient burn, or is just a symptom of being burnt?

Any input would be helpful.

Thanks,

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cloned said:

i know i've read, and learned ...heat damage is on the upper new growth

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