Originally Posted by atmmachine816

I have the penguin series and what I do for mechanical filtration is buy a pack of the aquaclear sponges that go in their filters and a big of filter fiber/floss. I put the sponges and pile the fiber on. I simply squeeze the sponges out every week and turn the filter fiber over everyweek till it is brown all over, then I replace, since I get a huge bag for a few dollars at my lfs I don't worry about throwing it out. That's what I've found works the best as mechanical filtration on these filters over the past several years. If you want I can show you a picture of my setup.