mixed signs plant problem

Strain is moonshine's ghost train haze week 6 of veg. Doing dwc in 16 gal tote. PH is 5.9. Raises .1 per day. Res change once a week. Ppm was set at 561 with a TDs 3. Dropped to 500 in a day which tells me to add more however looks like I have nute burn and nitrogen toxicity. Light is 600 watt dimmable mh/hps. Aircooled with 435cfm fan. Temp for today was hi-75, low-65. Rh hi-61, low-39. Using GH flora trio except I'm only using micro and bloom because I'm trying to cut back on nitrogen. Any thoughts?

I dont see any nute burn or N tox. You would get very dark thick leaves with too much N. No burn visable to me either.

Your leaves would look green AF if it was a toxicity. If anything I think you need to add a lil more.

What else causes tips to claw like the second pic?

overwatering maybe, are you foliar feeding/spraying? your leaves are too light to be N tox

I'm in dwc no foliar except neem oil.