fish aquarium sponge 1)materials:polyurethane foam 2)filtering water,improve water quality 3)good for your fish. fish aquarium sponge 1)Use the polyurethane foam material, from 10 to 60PPI.2)Suitable for filtering in aquarium with all kinds of water quality,keep the water clear,product is resizable.3)Larger surface good for denitrifying bacterial to grow,which is good for fish.4)Clean up once erery month,effectively improves water quality and dramatically reduces fish death rate.5)It can be washed and reused,environmental friendly,SGS qualified.Top of quality,reasonable price and great credit standing.if you need please contact with us any time. can be made according to customer’s request.NOTES:Our factory provides the following aquariums accessory products: filter sponge, filter foam, biological filter sponge, biological filter foam,filter fiber, biological filter fiber of activated carbon, biological filter fiber of removing ammonia and nitrogen, biological filter fiber of removing phosphate,biological filter fiber of removing nitrate, activated carbon filter bag,etc.
