5 gallon pots transplanted from 1 gallon on 6-2-21 into FFOF soil. Stems have been growing purple since seedling on the plant in question. Using RO water
Runoff reading from 6-5-21
Runoff collected from bottom of saucer
PPM: 1900-2000
PH: 5.3-5.5
Watered with 6.8 RO water to try to bring up ph. Fed 1/2 dose of cal mag couple days ago to see if it was a deficiency.
Not sure if im seeing a deficiency or nutrient lock out other 3 plants are growing fine nothing different has been done to this one. Its still growing at a normal pace despite the issue.
Any advice is appreciated
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All these plants are from seed and following the dipping my finger and weight method I would be watering usually every 2 or 3 days
What nutrients have you fed the plant besides CalMag?