I have one of the Hagen plastic CO2 canisters that hang on the ouside of my tank, that is fueled by 2 sachets of stuff provided with it and some added sugar. I originally got 3 sets of sachets and thats me on to the last set. I wondered if there was a homemade brew I could use in this canister instead - its difficult getting the replacement sachets in my lfs.
Any advice would be greatly appreciated.
Any advice would be greatly appreciated.