Hi Davew
No, you can't. In fact for most set ups the 3 mm id 5 mm od silicone hose is not suitable for WFP work. The flow rate it produces is just not enough to be usable (Jeff B has a slightly different set up to most people). If you did manage to get it working, you can buy a simple flow valve that pushes into it from Aquarium shops.
We are working on a new specification high performance silicone hose for our poles. It will have many of the qualities of the Algarde hose but will provide a suitable flow rate for our needs. Watch this space.