J
J Henry
- 127
- 28
They say you need to keep track of your PH and PPM in DWC/RDWC grows and you got to buy these meters and test Ph and PPM in the res water.
So, what brand Ph and PPM meters are popular and how much do these meters cost?
Why can’t you just look at the plants and roots symptoms and just guess what to do with the PH and PPM’s?
So, what brand Ph and PPM meters are popular and how much do these meters cost?
Why can’t you just look at the plants and roots symptoms and just guess what to do with the PH and PPM’s?