radioman Fish Crazy Joined Jul 12, 2007 Messages 354 Reaction score 0 Location Texas, United States Aug 21, 2007 #1 Do you need it and how many people use diy co2 devices.
George Farmer ad aqua Joined Jul 6, 2003 Messages 5,015 Reaction score 0 Location Stamford, Lincs, UK Aug 21, 2007 #2 Check out the pinned thread on CO2.