Dear Community, I would really appreciate some help! I'm growing on soil only and in the last days of veg 1 of my 3 plants started to show some discoloration in light green - brown mainly on older fan leaves. I repotted to 7L, but it didn't change anything. What can I do? Thanks!
From the color they have, I would say it's an excess of watering with fertilizers, and that causes root blockage. The best thing is to flush the roots and start watering with everything well calibrated, pH, EC, etc.
It’s looking like your experience a calcium issue. These plants really use a ton of Calcium to grow and it is needed to provide them with additional calcium as they grow.
Most bottles of CalMag will do, just follow the manufactures reccomended dosing. Luckily, this is one of the easier issues to fix.
I hope this helps.