Filter Sponge (Black)

A filter sponge for an aquarium is a type of filtration media commonly used in both freshwater and saltwater tanks. It’s designed to provide mechanical, biological, and sometimes chemical filtration to maintain a clean and healthy environment for aquatic life. Filter sponges are typically used in sponge filters, power filters, and other filtration systems to help improve water quality by removing debris, providing surface area for beneficial bacteria, and promoting water movement.