heat or overfeed?

I wanna say heat but im not sure

What are your temps running? What EC/ppm you are giving them? And what soil/soilless brand or mix are you using? Also if you did make a soil mix and you did't give it time to compost it could be composting and heating up damaging your plants.

Temp is about 70 or lower, i wanna say my ppms are probably about 1500 and im using advance sunshine #4 with coco with advance nutrients sensi a and b

70 directly under both those lights? Then not a heat issue. 1500 is pretty high and since its a guestament it could be higher. I would flush them and back off the nutes

5 week by the way also

Its only a guessament cause i aint got my chart in front of me

Any pics with lights off? Not all pics are loading for me but she looks pretty yellow, I would lower nutes but hit her with some N

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And get some calmag as I've just read your medium is coco

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the leaves are curling up like canoes look's like too much heat to me