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Unique ceramic filtration medium providing highest possible surface area & doped with GFO for phosphate removal in ponds & all aquariums with a pH of 7.5 or greater. Removes phosphate & silicate while providing bio-filtration. 320,000 square feet of surface area internally for bacterial colonization due to GFO spicule and “fur” formation during the ceramic formation in each liter. Made in the USA.
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🇺🇸 Ship from USA · On Agora since 2025
$17.32