High density sponge media that traps fine particles, fish waste, food debris and plant matter to help keep water clearer. Filter floss designed for both saltwater and freshwater aquariums provides additional mechanical filtration for improved clarity and reduced debris. Reusable and versatile: suitable for aquariums, turtle tanks, frog habitats, other amphibians, fish tanks, and small ponds. Simply rinse and reuse. Key attributes - Function: mechanical filtration to remove suspended debris - Material: high density sponge plus filter floss - Compatibility: works in both saltwater and freshwater environments - Performance: supports clearer water and easier maintenance Use scenarios - Freshwater community tank: place sponge media in the filter to capture uneaten food and waste, helping maintain water quality. - Saltwater or mixed-species tank: use floss for fine sediment and detritus removal as part of regular maintenance. - Enclosures with amphibians or small ponds: install as a filter medium to manage plant debris and suspended particles for clearer water.