Help Diagnose This Deficiency!!!! Mag or PH Lockout? PICS INSIDE

The plants are about a month old, started noticing the issue about a little over a week ago and it has spread pretty much throughout the entire plants now.
The leafs on the plant are a bit droopy, with curling tips, some brownish/yellowish spotting, and yellowing around the veins. New growth is very skinny and curling as well.

I had been being a bit lazy and not Ph'ing the water, so I'm either thinking its a nute lockout caused by high Ph or just a deficiency issue. Any insight would be greatly appreciated, thanks

I'd say a potassium deficiency caused by acidic soil from salt buildup/improper Ph. Try a nice flush and see how they react.

Thanks, I was planning on flushing with some water Ph'd to 6.8 and seeing if there's any improvement. I just don't want things to get worse

Looks like a Zinc deficiency maybe from high PH. That can also be coupled with other problems which might also be showing. I'd wait for someone with more knowledge to give a sure diagnosis... but if ya been a bit lazy with ph-ing a high 8.0 tap water then I think flushing with proper ph water would deff help...

Ya couldn't hurt to get em a flush right away...

Yup flush asap