its magnesium or potassium, Satori is a tough plant if your feeding it there is something wrong

whats the ferts your using and at what rates
id complete a soil runoff PH test.......
with PH corrected water (6.5-6.8PH ) pour enough water in the pots so the water runs out the bottom of the pot ...collect & test the PH of this runoff water....post both the watering going in the pots and the runoff ph