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TickleToaststarted grow question 4y ago

Redish Brown spots, and slight discoloration. Magnesium deficiency? Calcium? Other? Gave them a splash of Calmag, but was it even necessary? OR, should I have just swapped nutes and wait, then correct if not improved? (It was nute day, that's why I ask!)

TickleToast

TickleToast

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Leaves. Color - Dark-brown

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Mr_Weeds_Autosanswered grow question 4y ago

This is definitely going to be calcium-related, but the thing is most of the time with this it's a lockout and the plant isn't getting it all. Yes giving the plant Cal-Mag when you regularly feed is necessary cannabis plants tend to be very calcium hungry. I noticed your ph level was 5.8, In hydro, calcium is best absorbed by the roots in the 6.2 – 6.5 pH range in hydro, it’s generally recommended to keep the pH between 5.5 – 6.5, but calcium specifically tends to be best absorbed above 6.2, so this could be the cause for the lockout.

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Elgaranswered grow question 4y ago

Yeah you need to add some calmag. See how it goes and add less or more the next time. Cheers 😊

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