NutraFin CO2 Natural Plant SystemRelease the natural beauty of your planted aquarium with NutraFin CO2 Natural Plant System! CO2 diffusion, through natural fermentation, results in a dramatic difference in plant growth, condition and color. As a result, water quality is enhanced, benefiting fish condition and health. See dramatic results in just 15-20 days. The process lasts up to 30 days and is fast and simple to restart. Just rinse fermentation canister, add one activator packet, one stabilizer packet, some sugar and water, and it's ready to go.Kit includes:Patented CO2 Bubble Counter/Diffuser with a longer travel path & efficient CO2 diffusionFermentation canister with thermoregulation system and patented pressure release safety cover3 activator packets & 3 stabilizer packets (up to a 3 month supply), refills sold separately1 fl. oz. bonus bottle of NutraFin Plant Gro to promote vigorous growth and vibrant colors