Transform Your Tank! 🌟 Easily cut to fit any filter type for ultimate convenience. Experience pristine clarity with dual density technology. Enjoy longer-lasting water quality with superior mechanical filtration. Large 72” x 12” size ensures ample coverage for your tank. Perfect for both freshwater and saltwater aquariums. Fresh & saltwater compatible Dual density filtration Customizable size The AQUANEAT Aquarium Filter Media Pad features a dual density design that effectively traps both large and fine particles, ensuring crystal clear water for your aquarium. Measuring 72” x 12” x 3/4-1”, this customizable filter floss is suitable for various filter types and works seamlessly in both freshwater and saltwater environments.