http://forums.procooling.com/vbb/showthread.php?t=9431
This is how I did it. I used a plastic squeeze bottle and drilled a hole just under the size of the eheim inlet. The bottle fits tight around the inlet this way, and a bead of silicone keeps it leak free.
I question the Innovatek design in that it's small size may pose an inlet restriction and cavitation, a big problem according to pH
http://www.procooling.com/articles/h...s_with_h2o.php.