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Is this a cal-mag deficiency?
densesensistarted grow question 5y ago
My autoflower is in coco. I've been nute feeding at 500ppm and also foliar spraying a calmag 500ppm solution at nights off. It seems to be a calcium def from what I see on PWE.
I plan on flushing tomorrow at 6.0ph with florakleen and then feed next day at 550ppm.
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Leaves. Color - Dark-brown
Leaves. Color - Black or grey
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Robertsanswered grow question 5y ago
Yes cal mag spots. Coco absorbs calmag so have to add extra to compensate. It's one of few cons for using coco. Beside that it's a great substrate. Good luck and happy growing 🌲🌲🌲👊
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