i have a couple plants im growing and they all resently started getting light brown and yellow spots on the lower leaves and some leaves have shrivled up brown and dry.
most of the plants havent ever been fertilized, they are growing inside in soil under a couple random florecint lights.some plants are about 1 1/2 months one is about a year and even a spot has appeared on one that is only a week(its on one of the first round leaves).
im thinking maybe the pH?
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