I would ph up your tap water to 6.5. You have to check your PH after adding the PH up to your water bucket prior to adding it to you plants to make sure your PH is around 6.5. This should bring your PH runoff up. If it’s still low, you may add PH 7.0 to your water bucket to help adjust it back up
im assuming you have a means of checking the PH?
PH pen or PH test kit?
im assuming you have a means of checking the PH?
PH pen or PH test kit?