leaves turning yellow HELP!

[stompnu88]

Alright here we go im running the waterfarm 8 bucket kit and aside from my ph constantly jumping things were going good, but i changed my nuets 3 days ago and now my leaves are starting to look like this and getting worse..... What should i do this is my first grow

 

[stompnu88]

p.s indoor growroom using ac unit for air,GH neutes, ph at 6.3, and ppm at 800 or so. Strains= Sour D and ghanni

 

[Tactical Farmer]

start searching iron & zinc - its not nitrogen.

 

[Cozy Amnesia]

Is that early flower or late veg? Deficiencies can look very different when in veg vs. when in flower. I wouldn't rule out that it's not Nitrogen, but it's unlikely.

 

[Andrewj]

My plants got the same thing last crop i could not figure it out for a long time! But then i added "Liquinox" Iron & Zinc Chelated deficiency corrector and some Epsom salt for the Sulfate in it and they did the trick. Add one to one and half teaspoon per gallon. Hope that helps And happy growing
Andrew