Hi all,
I recently decided to add CO2 to my aquarium. I got a bargain, paying just £30 for two JBL regulators, a solenoid and three CO2 canisters with stands. The only problem was that just one canister had any gas in it. I was dismayed to discover that refills on the tanks were just short of £20 a go at my LFS and I had to order in advance.
After a little investigation, I discovered that I could get my tanks refilled at a quarter of the cost at a local fire safety company. £5 a tank, refilled on the spot is a fantastic deal in my opinion and I thought I'd share with you wonderful people on here!