Types include ceramic rings sponges pads bio balls and bio stars sand and gravel.
Ceramic rings biological filter media.
Fluval s biomax filter media consists of porous ceramic rings that are designed to optimize surface area and support growing bacteria populations.
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While there are other types of ceramic based filter media ranging from spheres to sticks they all behave similarly to ceramic rings.
Many hobbyists use highly porous ceramic plates or bricks housed in the sump.
They simply provide a home for the bacteria that do all the hard work.
Bioballs and ceramic rings are two basic biofilter choices.
Biological filtration media are like condominiums for bacteria.
While fluval recommends these filters be replaced every six months they tend to last considerably longer.
Bio pellets are a plastic media that house and feed bacteria.
Ceramic rings don t filter your aquarium.
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