New growth grey turning leaf tips over time

in my oppinion this looks more like a watering issue than a nutrient issue...

Pls make bigger pictures. This says nearly nothing. Can be overwatering or low ph or nutrient burn. ALL your diaries show nutrient burn, but this seems more like a sudden lockout. Check your ph and if it's correct try letting the soil dry out and look if the leaveas become green again from the inside. Your lower leaves also show problems.

This is nutrition burn. By looking at other leaves I am guessing you are not getting enough run off and have a salt build up issue going when adding more feed. The dark green showing in bigger leaves is a strong indication of heavy feed in soil, and generally a dropping ph.

Hey. So idk which diary u're on. So a bit hard to give definitive answers I do see clawing. And the color of your leaves are off. I put this down to ur ph been off. This can happen when you feed to often with not enough follow up water feeds to break down any excess nutes left and they build up (with their ph buffers all coming together to throw your substrates ph off) Water, water, feed, water water. With soil 2 feeds max per 6-10 days depending where your plant is at will determine how much is needed. I would focus on just giving water (ph'ed to optimal levels for the sub u using) this will help correct the issue some. Also your half leafs. Idk if its just how they look in tat light. But add some Epsom Salt (calmag) ES will be best as u can use it as a foliar spray also. 150ppm added 2 tap same goes if you've a calmag..