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
JBL ProFlora Bio160 64446 Concime Bio CO2 con diffusore espandibile, per acquari da 50 a 160 l : Amazon.it: Prodotti per animali domestici
JBL PROFLORA CO2 BIO SET, 1 set - Olibetta shop online