When mixing the hydroponic nutrient solution, begin with entirely pure water to measure the exact nutrient ratio that your crop will get. It is mainly used to dissolve water-soluble solids from hydroponic water chillers. It can contain water that is highly pure with deficient PPM levels. Water with a PPM of 200-300 is usually considered healthy for your plants. Each plant will have an appropriate level of solution, so if you mix too much and don't know how to adjust the concentration, the pH will cost you more.  Fruit trees and leafy trees have a pH level of about 5.5 to 6.0. The solution will contain a certain amount of mineral salts with easy and high solubility, free from impurities, to help plants grows well