Second time grower. Autoflower and hydro. I am using a “zero water” filter to remove dissolved solids down to close to zero before adding nutrients, adjusting ph, and checking PPM.
My leaves (week 5, flowering commenced) have blotchy bronze/brown spots which I have read is probably a calcium deficiency. I have been using 1 tsp CalMag/gallon of water, and change my water weekly. 1.4 gallon aerogarden setup.
Since the brown spots persist on new growth after a while I assume I am not using enough CalMag since I am starting with RO type water that has zero nutes in it.
Thank you in advance
It’s possible but would be helpful to fill out a Support Ticket and include pictures in white light.
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