PhosGuard™ rapidly removes phosphate and silicate from marine and freshwater aquaria. It is not recommended for phosphate buffered freshwater. PhosGuard™ is highly porous for high capacity and bead-shaped for optimum water flow.
6 filter pouches - Treats up to 330 gallons of water
6 filter pouches - Treats up to 1200 gallons of water
3 pack medium
10oz container treats up to 50 gallons
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