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Brown leaf tips
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!
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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