Need to extend intake tube for my filter— PVC or pex pipe?

[Shovad]

I have an Aqueon 15 gallon column tank and the provided Aqueon Quietflow filter 10 intake tube is too short so I would like to extend the tube. Which tube should I get - PVC or pex?

 

[Colin_T]

it doesn't matter, just get whatever fits.

 

[Shovad]

it doesn't matter, just get

it doesn't matter, just get whatever fits.

Ok I will go with PEX since it’s available in blue so it will blend in with my background. Typically how much distance should there be between the intake tube and substrate?