Hagen's Nutrafin® CO2 Natural Plant System is a complete kit that releases the natural beauty of your planted aquarium. Dramatic results in 15 to 20 days! The process lasts up to 30 days and is fast and simple to restart. Since live plants provide many beneficial effects to the overall quality of water, 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. Kit includes patented CO2 Bubble Counter/Diffuser, Fermentation Canister with Thermoregulation System & patented Pressure-Release Safety Cover, and a 3 month supply of Activator & Stabilizer packets. Great for up to 20 US gal aquariums. Shipping-Weight: 2.5 lbs |