What's up, again

[johnb1963]

Hello my friends,
still baffled by one of my two girls. All conditions are the same yet one seems to keep yellowing.
any thoughts?

[going22fast]

looks hungry for potassium

[johnb1963]

I feed once a week with fox farm trio and cal/mag. So why just one?

[kingfish]

I don't see a problem. Leaves turn color in some strains. Kind of like siblings, they don't all look the same. I am going through the same thing right now. These 2 girls are Kosher Kush from the same mother plant. They are 7 weeks old this Saturday.