well done that man :thumbsup: i was looking at the pics an see burnt leaves and tought nut burn straight away....but hes right ...lol....i didn`t look hard enough at the leaf veins.......they are dark green and that is a sign of mag defficency,epson salts sorted....welll spotted.
Anyway good luck

Ps i doubt the damaged leaves will green up ever again ,but the new foilage should be a good colour and burn free 2-7 days later.

Remember only feed nutrients once a week(give it 1/4 dose after flushing and increase by 1/4 each week)...its worth checking if your strain needs a lot of nutrients as some come be super sensitive and require little....or some can handle a good dose of nutrients...check it out....get salt though GL