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API Phos-Zorb 1 Pouch


3 in stock

PHOS-ZORB filtration media is scientifically proven to remove phosphate and silicate.

Each pouch treats up to 210L for 2 months.


  • Eliminates cloudy water

Follow API Easy Care Guide and use PHOS-ZORB when:

  • Addressing Water Solving Problems to reduce phosphates

Phosphate can enter the aquarium in fish waste, decaying organic matter and tap water.  High phosphate in the aquarium can cause water clarity issues.  Phosphate can be reduced with PHOS-ZORB, a phosphate-removing filter media.  PHOS-ZORB comes in a specialized 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.

When to use: When testing indicates the presence of phosphate (greater than 0 ppm / mg/L) or silicate (greater than 0.5 ppm / mg/L).

Treats: 1 large pouch treats up to 55 U.S. gallons of aquarium water
Rinse pouch under tap water for several minutes to remove dust and activate the PHOS-ZORB.  The activation process will temporarily generate some heat.  Place pouch in path of water flow in the aquarium filter.  Replace pouch every 2 months or when testing indicates the presence of phosphate or silicate.