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API Rena Smartfilter Cartridge Nitra Zorb 1 Pack



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A convenient pouch of natural and synthetic ion-exchange resins that selectively remove ammonia, nitrite, and nitrate from freshwater aquariums. Nitra-Zorb™ also helps during start up by reducing unhealthy ammonia surges while establishing the aquarium’s ecosystem. Nitra-Zorb™ is completely phosphate-free and can be reused after recharging.