Air tubing size?

[msmtinct]

I ordered a standard air tubing 3/16" and it seems really tight, won't go over my Tetra Whisper air pump output.
What size should be using? I tried stretching it out with a pencil but it didn't fit.

 

[Fishmanic]

try heating the end of the tubing with a hair dryer

 

[Colin_T]

If you bought the airline from a pet shop, then it is standard size and will fit. Soak the end of it in a glass of warm water for a minute and then try putting it on the air pump.

 

[Sgooosh]

If you bought the airline from a pet shop, then it is standard size and will fit. Soak the end of it in a glass of warm water for a minute and then try putting it on the air pump.

what if the air tube is too thick?

 

[msmtinct]

Thanks everyone--UI got it to fit.

 

[Sgooosh]

Thanks everyone--UI got it to fit.

nice