Dennerle Carbo Soda M200
Dennerle Carbo Soda M200 is a CO2 plant fertilization system with a reusable cylinder. CO2 (carbon dioxide) is the most important nutrient for lush, healthy aquarium plants. By using one of these systems alone, you will see marked improvement in plant growth and health. Comes complete with pressure reducer, diffusor, CO2 cylinder, cylinder stand, check valve and hose. For aquariums up to 200L.