What the F@$K is going on??? Nut burn or what??

I posted a thread a couple of days ago, but the problem has gotten worse. Is this nut burn??

looks nute burn... what week flowering are you? it could be a deficiency too but i would rather beleive its nute burn could be a bad ph imbalance too

About to be the 5th week. I have been adjusting the ph to 6.5. I have an electronic ph tester that I bought at a hydro store. I though it might be lack of nut, gave them some more nuts and they dont look any better. They are getting worse. Should I flush them??

It's nt burn. Looks like you locked out one of the micro-nutes. You may need so add some Cal-Mag to your nutes.

Calcium and Mag. need lower phs to be properly absorbed.

IF you are growing in hydro drom you ph to 5.8.

I am sorry to say the damage done will not go away. I have had issues like this.

Looks like a severe potasium deficeincy to me. Also other leaves look a bit N deficient in the the background, very yellow, that is why I don't think it's burn. And nute burn starts at the tips. Just my thoughts. Good luck though.

What should I do???

doesnt look like nute burn at all the leaves are two light. Flush each pot with about 5 gallons of water. Could be just a simple salt build up.

And after you do that wait a couple days and give a light fertilizing

i agree with vertise. flush it really good and give it at least a few days to work it out before giving it nutes