it works perfectly.... put the return line into the hose adapter ... and the drain into the other opening....and now everything is hidden. what kind of canister are you using?
Thats what I did too my 250 gallon with 2 fluval fx5s. It works well, but I have learned that it is best to use the biggest possible hose, and to use the smallest amount that you can (this helps with removing air bubbles within the canister).