Nutrient Deficiency?

[garrywithtwors]

I would leave some of the yellow leaves, if it’s a nute problem (too little) the leaves may start to green up, and you’ll know you’re winning should happen quickly. I’d go 900 ppm’s or more if the nute line says 700-900 is light feeding.

Well fam it got worse before it got better. First pic is from 4 days ago and the next one is from today. Initially I tried to up it by just pourin in a gallon of water that was extra nuted. Got it up to 750 ppm but I was still experiencin problems. So 4/5 days ago I said fuck it and switched the res out completely and used the max values on the nute line for week 4. Now she's lookin a LOT better

 

[Mountainman80]

Not sure what's goin on with this plant. I encountered the same issue on my last grow but MUCH later, like around week 10/11. Now it's only week 3/4 and some of my leaves are lookin like trash. It's already got cal mag in it. I've been usin the GH trio. PPM is around 675 and PH hovers between 5.8 and 6. Lights are about 24-30 inches above the plant. Temp hovers between 75-80 and rh stays between 50-60%. Any ideas?