Yellowing of lower fan leaves during flowering

Have both these ladies in the same tent. Feed them basically the same. Advanced notes (micro,grow,bloom) a.n's big bud, mammoth pand recharge. Also, have added some molasses. While the Lil auto is doing well and almost done, the gdp pheno is yellowing on the bottom fan leaves. Have tents in a CT basement and it's freezing outside (if that helps) temp is a Lil over 70% w/ relative humidity. Any advice?

Yellowing of lower leaves may be caused by nitrogen deficiency.

Potassium deficiency. What are you feeding?

Man them leaf tips are on fire..mid flower....im leaning towards lockout harley, seems like too heavy a feed on something

Yep N deff, probable a lockout.

Check this out for help.

Yellowing at the bottom is fine/normal at that stage. That said, it’s a bit early in flower for the rest of the fan leaves to be lightening up like that. Brew a tea or get some bloom nutes with a bit of N in there sooner than later.

famebudz said:

Any advice?

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Stop using molasses. Increase your temperature.

Serty97 said:

Yellowing at the bottom is fine/normal at that stage. That said, it’s a bit early in flower for the rest of the fan leaves to be lightening up like that. Brew a tea or get some bloom nutes with a bit of N in there sooner than later.

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Yellowing of leaves is not fine or normal at any stage.

I would also suspect Nitrogen is a little light.

twentyeight.threefive said:

Stop using molasses. Increase your temperature.


Yellowing of leaves is not fine or normal at any stage.

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Looks N deficient, taking it from lower leaves