The NEO CO2 Kit by Aquario is the perfect hassle-free and budget-friendly solution for your CO2 needs. Simple set up instructions along with all the necessary equipment is included in this kit, making it extremely easy to inject CO2 into a planted aquarium. The NEO CO2 Kit is designed to provide a natural supply of CO2 suitable for planted aquariums. We recommend using one bottle per 10 - 30 gallons of water for up to 50-60 days. For larger aquariums, multiple bottles can be utilized concurrently. Hassle-free and budget-friendly CO2 injection solution Comes with everything you’ll need Ideal for beginners and hobbyists alike