About This

• The aquarium bio filter media is made of with porous ore, rich minerals and fine porous volcanic ash refined.
• Ceramic media covered with thousands of porous tiny holes provides large surface area.
• Highly porous ceramic material produces both mechanical and filtration, Balance PH value and adsorb impurities
• Crack into pieces to any size needed, great for used in freshwater aquariums, planted aquariums, sumps and ponds.
• Each Box: 42 Pcs, Media size: 6.1 x 1.3 x 1.3 Inch