help plz!!!!

Hi there. I have a medical coop in wqshington state and almost all my plants are looking like this. All in a matter if days... Anyone know why they are crispy so soon. It's still in beg mode and there maybe a little light deprivation but I out honk it would've done all this. Any reply would be appreciative!! Ty

Standard Nute burn ...but really more info is required than that of the above ...regardless of the outcome will be the same unless you flush:
to my blog:https://www.rollitup.org/Journal/Entry/flush-baby-flush.27513/