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Leaf discoloration cause

Maggie_de_Blockstarted grow question 4y ago

What would be causing this? Haven't been feeding that much, possible that pH was a bit on the high side but not extreme. I did just defoliate quite a bit. It seems it's only the newer growth that's affected

Maggie_de_Block

Maggie_de_Block

Maggie_de_Block

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Leaves. Color - Pale

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OimRauschanswered grow question 4y ago

Hey Mate, First thought was too much, or too close to the lights. But then recognized pH 7 🤔 Quite high for coco. Just for your info, pH calculation is based on log10... so pH7 is ten times more alkaline than pH6. That's a big range. So, I would say lights or pH... Hope this helps a bit, good luck and happy trails for the rest of the way 🤞 Servus OimRausch

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The8thChevronanswered grow question 4y ago

Ah, yes, deficiencies caused by bad pH. You should be trying for 5.8 or so. Certain nutrients can't be absorbed at a neutral pH. Looks like you're having micronutrient deficiency as a result.

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