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API Rena Smartfilter Replacement Cartridge Phos Zorb 1 Pack



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Specialized filtration medium in a convenient pouch that eliminates cloudy water caused by phosphate and silicate. Phos-Zorb™ removes these common nutrients and enhances the growth of hard and soft corals in saltwater. Phos-Zorb™ also removes compounds that inhibit plant growth in freshwater aquariums.