TPS Nutrients BASE AB is a two-part solution that contains everything you need to grow and bloom healthy plants. It’s loaded with macro-nutrients, micro-nutrients, and essential organic acids. BASE AB is the best foundation for any plant nutrient regimen, and it’s fully compatible with other supplements. TPS’s formulations are made of dense bio-available plant nutrients and are paired with a complete array of organic chelating agents. You won’t find any synthetic agents like ‘EDTA’ here – If you don’t know what that is, you should probably look it up, because your other nutrient company is using it… and it's bad stuff. Great for soil, hydro, kratky, and aero-garden.