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Extremely porous ceramic filtration medium providing highest possible surface area for bacterial colonization for biological filtration for use in ponds & all aquariums with a pH of 7.5 or greater. Each liter provides over 40,000 square feet of surface area internally for bacterial colonization. Provides nitrification and vast amounts of anaerobic or anoxic surface area to foster denitrification. Will reduce the levels of toxic ammonia, nitrites and nitrates, phosphates and organic pollutants in all aquaria. Available in 9x8x1.5" plate. Made in the USA.
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🇺🇸 Ship from USA · On Agora since 2025
$61.10