Key Benefits: - Superior Filtration: Our aquarium filter pad features an 8-layer filtration system, including 2 layers of 3D honeycomb fabric, 2 layers of stereo hydrophobic fiber cotton, 2 layers of carbon fiber cotton, 1 layer of nano biochemical cotton, and 1 layer of fiber biochemical cotton. This multi-layer approach effectively captures large particles, fine debris, and odors, ensuring optimal water clarity. - Enhanced Water Quality: The innovative honeycomb design promotes effective filtration of harmful bacterial contaminants and supports the establishment of a nitrification system. This stabilizes the growth of nitrifying bacteria, providing a clean and safe environment for fish and aquatic life. - Eco-Friendly Materials: Made without harmful substances, adhesives, or chemical odors, our filter pad uses hot melt technology to ensure the safety of your aquatic pets. Ideal for environmentally conscious aquarium enthusiasts. - Durable and Easy to Clean: Constructed from a robust mesh fabric, our filter pad resists deformation even after over 200 washes. Unlike common filter sponges that easily lose shape, our design allows for long-lasting use, reducing the frequency of replacements. - Versatile Applications: Sized at 11.8 x 15.7 x 0.8 inches, the filter pad can be cut to fit various filtration systems, including canister filters, hang-on-back filters, and wet/dry filters. Perfect for freshwater or saltwater aquariums, fish tanks, turtle habitats, pond filters, and aquaponic systems. Experience the difference in your aquarium's water quality with our advanced filtration solution, designed for efficiency, durability, and safety.