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Granular ferric oxide for phosphate control in all marine & freshwater aquaria. Directly and efficiently removes reactive phosphate from aquarium water. Also removes silicate and phosphate-based organic material from aquarium water, often resulting in improved water clarity (particularly in aquaria with heavy bio-loads). Safe for use in all freshwater and marine aquaria, including planted and reef systems. Made in the USA.
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🇺🇸 Ship from USA · On Agora since 2025
$22.71