Quote:
Originally Posted by bowie2003
I dun no wat is ec & ppm
|
(EC) Electro-Conductivity
(PPM) Parts per million
Both are slightly different but but do essentially the same thing. They are both a way of measuring the strength of your
nutrient solution. Here is a page that shows you these values for many
Hydroponically grown Vegetables as well as the pH levels (the degree of acidity or alkalinity of a liquid solution).