Filter media question

  1. B

    BYFishy New Member Member


    I have a Aquaclear Fluval 50 filter(3 layer media system) on my 29 gallon tank. Since I have a female Platy, I put a piece of mechanical filter foam on the intake. Do I still need the mechanical filter foam inside the filter? or can I replace it with a second bio filter bag?

  2. petaddiction

    petaddiction Well Known Member Member

    It really depends on your preferences. If I were you, I would try to make room to leave the mechanical filter foam already inside the filter in the filter somehow. It has lots of established bacteria on it, I'd assume so I wouldn't just take it out and risk harming the cycle.