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Large leaves starting to yellow and brown.
Themythicalchristineanswered grow question 4 years ago
It looks like the beginning stages of a magnesium or a nitrogen deficiency, when the light is nice and close the plant will eat up the calcium and magnesium very quickly.
If the PH of the substrate is too high or low you may run into other deficiencies or abundance’s causing a burn.
I would start with confirming the PH of the substrate and the water first.
Whatever the culprit it still seems very mild; and you have a gorgeous plant!
Good luck and happy growing
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