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$22.65 – $84.99
Julian Sprung’s Marine Aquarium Formula
Synthetic ferric oxide hydroxide granules with an extremely high capacity for adsorbing phosphate from saltwater and freshwater. Also adsorbs silicate, and does not release adsorbed substances. Recommended by Julian Sprung for long-lasting and easy control of phosphate levels on a permanent basis. Available in 150g, 454g, 1200g and 6000g.