Anyone know what is causing the brown spots on the leaves? So far it’s limited to one plant, and it was closest to grow light. PH of soil appears to be normal, and I have not fed any nutrients yet. The water in my house is treated with Calcite/Corosex for PH correction.
Brown spots are usually a cal mag underfeed. though this can be something different try upping her feed abit keeping the ph between 6.5 to 7.5 when growing in soil. Though it does look like a cal mag issue to me. great looking grow keep up the good work :)