Original Grow for Hydro A&B; aids the key processes necessary for turning organic material from dead plant matter into beneficial nutrients. It sparks off significant root growth by improving Hydro structure (in terms of water retention) and promotes nutrient producing bacterial life in the substrate. Incredibly, you’ll also find that Original Grow for Hydro A&B; stimulates the cationic exchange of minerals and micronutrients and improves resistance against fungi and stress situations! Honestly, all this from only one product? You better believe it!