Acurel LLC Phosphate Reducing Media Pad, 10-Inch by 18-Inch;

Infused with special phosphate-absorbing particles to pull phosphates from aquarium or pond water, the Acurel phosphate reducing media pads will reduce high phosphate levels - reducing algae growth and water change frequency. This thicker, more rigid design performs better than other media pads. For use in all fresh and salt water aquariums and ponds.