Unbranded Filters 100pcs For – Black Balls Media Filtration Biological Mm Biochemical Fish Filter- Filter Aquarium Tank Inch Aquarium Sponge Filter 3.6X3.6X.6cm

POND FILTER MEDIA– In the event of excessive buildup, you may gently rinse with water from an established aquarium, if desired<br>FISH TANK FILTER– Easy to use: It can also be in bulk or in mesh bags with plastic zippers in tank.<br>BIOLOGICAL MEDIA FOR AQUARIUM FILTER– Material: The ball is made of cotton and plastic, light but no easy to.<br>BALLS FOR POND FILTER– Effective to avoid residue and reduce the death rate of fish and chemical filtration and increase the oxygen solubility in aquarium and fish tank.<br>FILTER MEDIA FOR PONDS– Easy and convenient to use.