Baics of EC
I'm new to hydroponics growing and have a basic question about mixing the nutirent solution. Currently I'm growing some sage in a homemade DWC system and was wondering if I'm mixing the nutrient solution correctly.
When you are mixing to obtain say 1500ppm nutrient solution do you add the 1500ppm on top of the reading of your water without solution? So if I had water that was reading say 500ppm before adding anything would I then add solution to bring the reading to 2000ppm? or could that provide your plant too much of a certain nutrient (obviously something is in there raising the count).
Also at what point(well water) hardness would you consider using distilled/spring water? For me its not such a big deal since my grow is small for now, but it would be easier to just use tap water(or filtered tap water).
Thanks in advance for your help.