filter tube?

[flitabout]

I am still waiting to set up the tank, so here is my question:
I opened up the filter I just wanted to look at it and I notice the intact tube is really short in relation to the tall tank, is there a way to make the tube longer? The filter is a topfin 40.

 

[jefferzbooboo]

I've never used the Top Fin brand ones but they usually include an extension tube.