- Oct 5, 2019
- Reaction score
It seems one of my plants may be in a nutrient lock. I grow in OF soil. I think it's suffering from a calmag deficiency. I use RO water PH'd to 6.5 yet when I checked the runoff, the ph of the runoff was at 4. Will boosting the PH of the water going in to maybe 7 help bring up the ph of the medium I'm growing in? I've necer had to flush with soil before and I checked the calibration pf the ph meter and it is real close.