Leaf discoloration cause
Maggie_de_Blockstarted grow question 6y 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
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OimRauschanswered grow question 6y 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
The8thChevronanswered grow question 6y 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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