I have a PH:6 I have been dosing with PH Up for the past 4 days. The system is 1000 Ltr with 4 x 250 Ltr grow beds with clay beads.
I started dosing with 10mls of PH Up on the first day then I did 10mls twice the next day I followed this with 20 mls yesterday and again this morning. I have recorded no change in the readings.
Is there something else that I can do?