I fed the plants yesterday and noticed that it was too warm in the tent. (86F)
So I change the light time to 9pm-9am.
As a result, the plants had 24 hours of darkness in the tent.
When I turned on the light today I noticed that some of the buds had yellowed.
pH (soil): 7,8-8,4
Solved
Buds. Other
Leaves. Color - Yellow
Techniques. Other