Fluval Filter Media BIOMAX Ceramic Bio Rings 500g Betta Fish Tanks Removes heavy metals

Removes heavy metals

Always wash in cold water before use

Biological and mechanical filtration for efficient removal of dissolved and solid waste

Free air hose 5m x 4 and air stones x 4

Creates an ideal place to hide for shy pond fish

Fluval Filter Media BIOMAX Ceramic Bio Rings 500g Betta Fish Tanks Removes heavy metalsFluval Filter Media BIOMAX Ceramic Bio Rings 500g Fluval BIOMAX bio rings have a complex pore system creating an optimal environment where beneficial bacteria can thrive. BIOMAX bio rings have more capacity than most biological filter media and allow ideal water movement throughout the media to ensure optimal contact time for efficient biological filtration. BIOMAX also reduces and controls ammonia and nitrite. For freshwater and marine environments.