what do u mena by this so if u grow in soil ppm is not important, is ppm for hydro?Are you growing in soil? If so ... why would ppm be important?
Or, did you mean what nutes to use?
Vi
Yes, that's what it means. What are you using it for?iv got a tds ppm meter and it has a little x10 on it dose that mean if it says 400 it means 4000?
Is there any particular reason that you are posing hydophonic nutrient questions in a forum other than the hydrophonics forum? Reason I ask is because if you pose them in this forum, its assumed that you grow in soil ... and the answers to your questions, unless you specify, will be given soil nutrient answers.hydroponics dwc