Hydroguard BCNBHG25 2.5-gallon Bacillus root inoculant is back with a new, clean look and a more powerful, concentrated formula. Hydroguard's reformulation makes it more effective than ever. Hydroguard's unique formula, contains an isolated form of Bacillus bacteria known as Bacillus Amyloliquefaciens. This scientifically isolated bacterium was chosen for its superior ability to amplify root mass and vigor, especially when compared with the more common and well known Bacillus Subtilis species. These highly specialized rhizobacteria help in the breakdown of organic materials, and nutrient availability.