I don’t know really what I’m doing with ppms. All I know is that it is a useful tool when using nutrients to read the plant as well as what I put in her. Like just before my last rez change I noticed ppms weren’t dropping within a 24 hr period so I did a res flush and cleaned everything out. As soon as I started putting nutes after the res change she started eating again. I think she was in a lockout situation with too many salts from nutes but I could be wrong idk. Imo She should always be eating ppms so if she isn’t then something ain’t right imo. This is just my experience with the relation to how she grows and looks. I can see an immediate change in her visually when I do something different. I use all the tools I have and play around mostly just to see how she reacts I then use the thcfarmers members input then I use all that information to extrapolate future decisions to make her happy. In summation I find a base to work with, then I fine tune all of my resources in relation to how she responds. If she’s growing, green and smells nice then I’m good or should I say she’s good.
PPM should stay static, or the same. If PPM rises the plant is ignoring nutrients and drinking the water. Loss of water and nutrient amounts stay the same, and the PPm reading goes up. The PPM will never fall unless you add water to the reservoir. Always top off with the same mix /ppm you used during the current swap.
PPM is an overall reading of the mineral content of the water. EC is Electrical Continuity and is just a different way to read it. Because metals or minerals in the water allows water to become a conductor of electricity. So it’s just one and the same on a different type of scale.
You use GH products. Use and do not deviate from their feed charts, they have perfected it for you already and there is no need to deviate.
