I am currently grow two StarDawg plants under the Mars Hydro TSW 2000 and have noticed a few White spots on a bottom leaf on one plant. They are currently 24 days sense sprout growing in Fox Farm Ocean Forest with no extra nutrients added yet. The run off was just tested and showed a PH of 5.90 the water being added has been at a steady PH of 7. If anyone can identify this issue and suggest what corrective action I could take I would greatly appreciate it.
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Kind of looks like damage you'd see from over watering.