Fluval Mini Pressurized CO2 Kit - 20 g

All planted aquariums require CO2 for them to thrive, so it is extremely important that they are supplemented regularly to keep them happy, since carbon is 40 to 50% of a plant`s dry weight composition.  This CO2 Kit is designed to efficiently supply nano planted aquariums with the necessary CO2 for plants to grow and stay healthy, and is ideal for small planted aquariums up to 57 litres (15 US Gal)

This kit includes one 20g CO2 cartridge, but additional replacement cartridges can be found HERE.