Please help plats yellow, dying, automatic indoor week 4

[DrVerdus]

Hi this is my indoor with automatics on week 4, everything was fine till five days ago, started to see some yellowing leaves, ligther green on plants, then yesterday got diying some leaves, other whits stains, and mos worriying of all, new leaves smalls and depresed, here some pic, please help me.

Yesterday watered them with mixture of nutrients.

[Rwise]

Go here and read

https://www.growweedeasy.com/cannabis-symptoms-pictures

Find your symptom and follow the "read more" and find that the first thing to check is PH.
Whats the PH? Soil, Water, runoff
Give details of your grow, media, lights, PH, RH etc. etc..

[OldManGrower]

Check the GWE website "Plant Problems" at the top of this page. Sure looks to me like PH issues.