BIONOVA - BN ZYM - 5LBionova Zym Enzymes ? Concentration 1: 2000 ? NPK 0 0 0 Bionova Zym is a natural bio catalyst (process accelerator), medium builder and medium improver based on specific enzymes. Enzymes stimulate the water retaining ability of every medium, which enables a quicker and better penetration of water into the medium. While Bionova Zym penetrates the substrate, it creates more oxygen! Bionova Zym will increase bacteria activities, which converts nutrients