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Brown leaf tips

GR0WER
GR0WERstarted grow question 2 years ago
What kind of pathology is it? It's much more brown tips on the older leaves and on that plant wich I tried to flush to down soil ph. Other plant looks better but already has a few of them too. Is that overfeeding?
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Week 5
Leaves. Tips - Die
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GrowingGrannie
GrowingGrannieanswered grow question 2 years ago
You've got a couple of problems I can see and one is certainly a bit of overfeeding... I'd get your EC down to 1.2 at the most... But your pH is way too high here as well... that's preventing good absorbtion of potassium ... while the tips MAY indicate nute burn, if the burning/yellowing continues on up the edge of those leaves, you're looking at a potassium deficiency... You can easily add a small dose of PK boost to your nutes in the event that's what this turns into.... but get your EC down... at their age, 1.0-1.2 would be the ideal EC range... and get the pH down to 6.0-6.2... Good luck!
GrowingTranny
GrowingTrannyanswered grow question 2 years ago
Yes that is the first sign for overfeeding. Cut the nutritiens to 75% from your previous given amount.
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