Xtreme Gardening AZOS is a powerful, all-natural growth promoter designed to enhance plant root development and improve nutrient absorption. This microbial inoculant contains Azospirillum brasilense, a beneficial bacteria that naturally converts atmospheric nitrogen into a plant-available form, reducing the need for synthetic fertilizers. Looking to enhance your hydroponic garden?... https://www.hydroponicstown.com/az1351-xtreme-gardening-azos-beneficial-bacteria-natural-growth-promoter-12oz