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Leaf spots

OGSesh
OGSeshstarted grow question 3 years ago
Hi guys. These spots have formed on the lower leaves. Is it a cal-mag deficit or maybe is it due to strong airflow? Also, are they already big enough to switch to 12/12 light or give them another week? Thanks!
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Week 3
Leaves. Other
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GMSgrows
GMSgrowsanswered grow question 3 years ago
You need to flush the ferts out and reintroduce. Cheers
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OGSesh
OGSeshanswered grow question 3 years ago
Thanks, I will lower the fertilizer dosage. Is it a good idea to do next watering with GHE FloraKleen, without fertilizer?
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GMSgrows
GMSgrowsanswered grow question 3 years ago
Your ppm is way to high. You should be at 7 or 800 ppm not 1500. Run some water through until you get the nutes lowered. Cheers
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BostonGirlGrows
BostonGirlGrowsanswered grow question 3 years ago
They are looking much better this week. Can’t pinpoint it exactly- but looking at your feedings, it might be a bit of over feeding. She’s dark green- maybe a tad too much nitrogen. But those bottom fan leaves tend to be the oldest and can suffer from lack of light even before you hit flower. Seems cosmetic at this moment. 🌱
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