Maxx is like pro biotics for your plants and contains two very powerful and helpful types of bacteria. You could put twenty different bacteria in a bottle but in a short amount of time only the one or two strongest strains will survive and colonize properly. You don’t need more than two strains.
When they colonize they do two important things. They create a happy home environment for your roots and they produce organic acids. These organic acids solubilize calcium and phosphorus and free up both Ca and P to be taken up by the roots and to be available and used by the plant.
You do not need a large amount of Maxx for the “maximum” effect, and Maxx is in a very stable solution that is ready to come alive when you feed it to your plants.