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Please Help!
Mr_Weeds_Autosanswered grow question 2y ago
I would start by checking your pH this being off can cause so many issues, I would also make sure that your watering to runoff to make sure there is not a nutrient lockout due to salt buildup, also at this stage, I would actually lower the humidity a 70% is pretty high for plants that are on week 4.
Organomananswered grow question 2y ago
Sphagnum moss can by highly acidic.
Since you are using a large percentage of it in your grow medium, I would be checking the pH of the run off as the first step to solving this issue.
It is not a RH or PPFD issue.
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