I am using Sensi Grow A&B, B-52, Voodoo Juice in RO.
Got around 120L in total and had deficiency problems at 680 ppm (240ml Sensi Grow A, 240ml Sensi Grow B, 250ml B-52, 250ml VJ).
I upped it to 880 at first and the problems seemed to persist but maybe I was a bit impatient and I upped it to...