Hey all! I recently bought an AQ 300 to accompany my Magnum HOT. I stuff the media area with filter floss and the filter sleeve off of the media canister for the Magnum. I am wnodering, what would be the best media to use??? And where can I get it??? What I have in there now won't allow me to turn the AQ on full w/o overflowing. Any suggestions??? I have the same problem with the whisper 40 too. Thanks!!