Dennerle Carbo Soda is a practical alternative to the classic CO2 fertilization system. With the Dennerle Carbo Soda M200 you can use a standard soda CO2 bottle as CO2 system for your aquarium. The advantage is the high availability of soda bottles, they can be easily exchanged. A good and constant CO2 supply is important for a healthy growth of aquarium plants and facilitates the maintenance of your aquarium. So you have the possibility to create perfect conditions for plants and aquarium inhabitants.Dennerle Carbo Soda M200+ CO2 System with Soda cylinder for aquariums+ complete kit for aquariums up to 200 litres+ pressure reducer suitable for all Soda exchange cylinders+ with precision pressure reducer made of milled aluminumn+ Dynamic Valve Control (DVC) for a constant CO2 supply+ the integrated manometer shows the working pressure+ soda cylinder qith stand included+ with CO2 diffusor Dennerle Ultra M, CO2 hose and no return valve+ Carbon, the most important basis for photosynthesis