I’ve got a Skunk #1 fem in week 6 of flower… but around week 4.5 it’s leaves started turning lime green and the buds stopped growing. Now many leaves are yellow. I thought it would be better after I flushed but it’s getting worse… PH is perf on the way in and out. Same w PPM. Temps and airflow are fine. I’ve got 3 other plants w nice green leaves, no yellowing (diff plants.) I’ve been paranoid about over feeding so I don’t think it’s nute-lock or over-ferting. Maybe I need to give more nutes? Given half stength bloom every other water… any tips!!!
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And after this last watering (straight PH’d water,) the yellowing leaves started drooping a tad… leaves close to the buds seem ok…
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What’s your runoff numbers looking like?
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Are you using cal-mag? And it doesn’t look that bad. I dig the training 
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I agree, this is the time when they start pulling more nutes from the lower leaves, I don’t usually get too worried unless there are other discolorations like rust spots. but I agree with @Dman1969 about adding some cal-mag. Maybe some extra phosphorus to help with bud growth
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Ok thx guys… there are kind of a lot of yellow leaves and the curl worries me… plus bud growth slowed way down… but hope u are right… one thing I didn’t mention is the nutes I have are kind of old… maybe that is causing lack of something…
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It very well could be old nutes. Have you seen a expiration date or manufacture date?