looks a bit dark and clawing... dial back.
I see you are in coco, so you can dilute your fertigation. -- if you have more than one part in your fertilizer mix, just diute the one with N, i think that's what it is, or be safe and dilute it all evenly.
A little dark down below and rising? some claw etc..
i'd play it safe and maybe knock 10-15% off...
if you give multiple irrigations per day, give 1 pH-only irrigation (or partial of a larger irrigation) to help get you down to a better equillibrium faster (small dose!).