Join Date: Aug 2003
Location: Kelowna, BC, Canada
Yes, regular tubing will seep CO2 substantially faster, and if you are using a pressurised system, you'll want the proper stuff. However, I don't really see it mattering too much in a DIY situation. Silicone though is about the worst thing to use. Even vinyl is a lot better.
Plants are gone, but my 33gal and I are back after a long hiatus.