Dave Spencer said:CO2 Supplier: Oxford Welding Supplies.
Location: Freeland Gardens, Wroslyn Road, freeland, Witney, Oxfordshire, OX29 8AQ. Tel: 0199 3882832.
Service: £59 for an 83cm pub cylinder and £30 to refill it.
Themuleous said:My only thought would be the change in temperatures that occurs outside. As the temp changes so the pressure in the cylinder will change (or so I would think) and that could affect the bubble rate = potential for gassing the fish.
Sam