DYMAX Bio Max Filter MediaDYMAX Bio Max is made of premium sintered glass with iron added, that put together as a ring shape that houses billions of beneficial bacteria in order to get rid of ammonia, nitrite and nitrate in the aquarium. Bio Max is the most effective biological media in the market as it has a highly penetrative porous structure of 48% with an approximate specific area of 500 square meter. In this way, Bio Max cultivates both nitrifying and denitrifying
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