I used this stuff when i did a NFT grow, worked great on the roots.
CANNAZYM is a high-quality enzyme product. It consists of more than 12 different kinds of enzymes to which vitamins and extracts of desert plants are added. CANNAZYM speeds up the process of breaking down dead root material and activates the micro-organisms. In addition to this, CANNAZYM facilitates the improved absorption of nutrients and increases the resistance against pathogenic organisms.