yes it is nurt burned ......see the tips of the plant see how they look like they are fried ........nurt burn is a good thing means the plant is being offered little too much food (personally i try to always see a little tip burn know the feeding is strong enough)
your issue is the yellowing not the nurt burn .........1 of 4 things
1 lack of N
2 lack of iron
3 ph is off ...causing a intake trouble
4 the plants own genetics are trigger the yellowing to attract bugs that might pollinate it
it looks to be fan leaves not sugar leaves so it is early stages of one of those
The plant looks nutrient burnt on the tips for sure. I kindly disagree with pushing a plant to that point of nutrient strength. It’s just asking for crumbly harsh buds and reduced yield and appearance.
The yellow leaves look too high on the canopy to assume n def.
Hi thank you guys for the info. There's definitely not water logging. Drainage is good and plants drink up every thing in about 2 days. I have never checked ppm so I'm not sure there. My ph in my water I'm feeding to the plants is about 6. I think I might need to raise it more tho.
A little kiss to the tip of the leaf is a good thing...dried up curling like you have, not so much. The clawing of your leave tips suggests too much N, the yellowing looks to be an Mg shortage. You're in flower so tread lightly with whatever you decide. Good luck.