Yellowing/ super light green leafs

[wisco_grower]

Hey friends, I have a gorilla glue auto from fast buds that I need some help on please. Everything was looking good until two days ago leaves started to yellow/light green, pHing around 6.2, 25 days old,

 

[Garage_Grower]

Post this in the Infirmary, and fill out the form as to what’s going on! You will get your answers there!