Ph- by Bio-Nova is a product with 24.5% phosphoric acid, a relatively low concentration to make life easier for us. The acidity level of the nutrient mixture is measured after all the products have been added. If it gives us a result between 5.5 and 6.5 we can leave it like this, if the level is above 6.5 we will have to add BioNova Ph- little by little to reach the desired value. If the value is less than 5.5 you will have to use Ph + from Bio Nova.
Now you can lower the Ph level of your water for irrigation, with BioNova Ph- regulating liquid. When we use this product, we will not have big changes in the Ph when we work in Hydro or in tanks. A product that will leave the pH of your nutrient solution stable, and that will not have fluctuations in the levels, at least drastic rises or falls that could end our crop.