15-layer Aquarium Biochemical Filter Sponge Foam For Fish Tanks - Glue-free,. Enhance Your Aquarium Care Routine with This Innovative 15-layer Fish Tank Filter Sponge. Engineered for Superior Filtration, Its Advanced Nano-culture Layer Provides Excellent Water Permeability Without Causing Clogs or Overflows. Each Layer Leverages Different Filter Materials to Achieve Pristine Water Clarity in Your Aquarium. Crafted from Durable Polyether and Polyester, This Sponge Features a Three-dimensional Mesh Fabric with Multiple Biochemical Layers, Ensuring It Withstands Warping, Fracturing, and Tearing over Repeated Use. Its Robust Design Promises Long-lasting Durability Through Numerous Cleaning Cycles. Eco-conscious and Safe for Aquatic Life, This Filter Sponge is Created Using High-temperature Technology, Achieving Natural Bonding Free from Glues or Harmful Substances. This Means Your Fish Can Thrive in a Clean, Pollutant-free Environment. The Sponge is Adaptable Across a Variety of Filtration Systems, Such As Waterfall, Hang-on-back, Canister, and Submersible Filters. It is Easily Customizable, Allowing You to Cut It to Fit the Specific Needs of Your Setup. Suitable for Freshwater, Seawater, Shrimp Tanks, Aquaculture Systems, Turtle Tanks, and More. For Best Performance, Soak the Sponge After Cutting to Enhance Water Flow and Filtration Efficiency. We Aim for the Highest Quality and Customer Satisfaction, So Feel Free to Reach out with Any Queries or Concerns. Features: - 15-Layer Design for Enhanced Filtration with a Nano-culture Layer. - Durable and Washable, Crafted from Polyether and Polyester. - Eco-Friendly, with No Glue or Harmful Substances. - Customizable, Fits Various Filtration Systems when Cut to Size. - Versatile for Use in Different Tank Types. - Available Sizes: - 50x11x2cm / 50x11x2.5cm - 40x30x2cm / 40x30x2.5cm - 50x40x2cm / 50x40x2.5cm - Package Includes: 1x Fish Tank Filter Sponge.