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Medium size extremely porous filtration medium for use in all reefs, marine, freshwater aquariums & ponds. Used for biological filtration, nitrification, and denitrification. Reduces level of toxic ammonia, nitrites, nitrates, phosphates, and other organic pollutants. Can be used in a canister filter, reactor, or other type of aquarium filter with good water flow. Made in the USA.
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🇺🇸 Ship from USA · On Agora since 2025
$5.58