Chlorosis, Necrosis, and leaves Curling up

So I’ve started using the iron head method for nutrients which consists of

Silica 1ml/L
Hydroguard 2ml/g
GH Micro and Bloom
Photosynthesis Plus

If you google iron head method there’s a whole webpage about it

My TDS meter is reading around 750ppm and my run off is always within 10-15 ppm up or down between each plant.

I PH at 5.8 I’m using coco coir (double buffered and rinsed)

I have an ac infinity humidifier that always keeps the vpd in the right range
(Right now it’s 80° at 63% RH)
I have 2 small circulation fans that just make the leaves move alittle bit not crazy

I’ve also noticed my flowering plants having the same issue so I’m thinking it’s a nutrient problem.

I give them close to the same mix but alittle stronger ( around 900ppm) with plain water every 4 days.

I turned my light down to about 500ppfd for my veg plants a couple days ago but I haven’t seen much change

Everything seems to be in range and I water once a day and keep my coco moist so I’m not sure what the problem is so I’m coming to the community for help


The hole in the leaf is just from my cat :roll_eyes: