Mark Nicholls
Member
I'm running my 50l aquarium at 1bps using a Pro SE and paintball adaptor. Started using it mid December and the gas has hardly gone down. I am expecting for it to last for at least 6 months at this rate. I use sodastream because the adaptor has a tap, making removal and setup really easy; also sodastream are easily bought via Amazon and several retail outlets. Finally, the canister fits perfectly in a bicycle drink cage!