Proflora Bio 80 2 (BioCO2 Multiple Use) 30,00 € JBL
JBL ProFlora Bio80 eco 2 Bio CO2-Düngeanlage, Für Aquarien von 12-80 l, 64449 : Amazon.de: Haustier
Anyone have any experience with this? JBL ProFlora Bio set. This supposedly has something in the container that releases/forms CO2. I don't want to break the bank for a 30 litres aquarium