co2 airline too permeable?

[hubbahubbahehe]

hi all, I vaguely remember reading something (i forget where) that the silicone tubing you get at petsmart is no good for diy co2 because co2 is permeable through there and a lot of co2 is lost in that way.... i couldn't find the topic again so i wanted to post this to see whether it's a big deal ?? if so, in that case what kind of airline tubing should i be using to replace the blue silicone one.

thanks all for your time.

[Wasserpest]

A quick click on the Search button... aaaahh!

http://www.plantedtank.net/forum/viewtopic.php?t=4944

Hope that helps :mrgreen:

[hubbahubbahehe]

wasserpest, you are the man, the MAN hehe thanks for helping a computer illiterate

[hubbahubbahehe]

hey wasserpest, what kind of tubing do you use? vinyl perhaps? i found it at home depot so i was thinking of replacing my silicone tubing with vinyl

[Wasserpest]

I use the brownish tubing that came with the Hagen/Nutrafin setup. Trying to keep those connections short.

[hubbahubbahehe]

oh cool, say for your 100Gallon Planted setup, what does your diy co2 consist of? I'm going to be getting a 95 gallon acrylic wide tank in a year and would like to copy your approach.

[g8wayg8r]

I use copper from 1/4" above the water's surface to about 1' from the regulator. Each end of the copper is attached to a hose barb via a 1/4" compression fitting with a 1/8" NPT female end. Inside the tank, it cheap Top Fin vinyl. On the other end, I use Tygon Fuel Line (from my local hobby shop that carries RC airplane stuff) to connect the copper to the regulator. That makes it easy to handle during change outs. You could always use a pigtail coil of copper if you have the room. I'm a little crowded so that's not a good choice for me.

[Raul-7]

Aquatic Store sells C02 tubing, it's cheap and you can get it in any color you want...

[g8wayg8r]

Someone on another post read the print on the tube and it's polyurethane, which isn't any better than vinyl.

[hubbahubbahehe]

really? i thought polyurethane was good?