When using Advanced Nutrients staples, the internal pH Perfect® technology automatically stabilizes and locks the pH in the optimal range of 5.5-6.3 and keeps it stable. All primary, secondary and micronutrients are included in pH Perfect Sensi Grow to promote excellent plant growth. The fully or partially chelated components ensure maximum nutrient uptake. Humic acids and non-ionic surfactants form a delivery matrix for optimal nutrient uptake. The pH Perfect Sensi Bloom product offers everything for big, heavy and juicy flowers, thanks to a complete and constant supply of all required nutrients as well as powerful flower cofactors.