Biological filter pad,Effective to avoid residue and reduce the death rate of fish and chemical filtration and increase the oxygen solubility in aquarium and fish tank.
Filter floss aquarium,strong filterability. It can be used repeatedly after cleaning.
Can be cut any size as your needed by yourself.
Suitable for sea water tank, fresh water tank, aqua-plant tank.
Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!