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  1. We are after as many aquarium plant images that we can get, doing so will assist us in completing the aquarium plant database.
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Biological Filter Media

Discussion in 'General Plant Topics' started by shane, May 17, 2008.

  1. shane

    shane Lifetime Charter Member
    Lifetime Member

    Nov 29, 2006
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    12:26 AM
    I currently use Eheim EhfiSubtrate for my biological filter media (it came with the filters). I have been running it for about 1.5 years now. How long does the biological filter media last? How often does it need to be changed out? What is the best biological filter media to use?

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