V1NF 100x 13.5x 3cm Aquarium Fish Tank White Biochemical Filter Cotton XY-1831

100% Brand new and high quality
This product is suitable for seawater， fresh water， water tanks， size can be cut freely.
Dense hole clearance and softness， and through expert analysis is the best to cultivate good hotbed of nitrifying bacteria.
On the biochemical cotton waste and feed residue， improve water quality filter clean. Best effect， reduce the fish mortality.
Cleaned once a month， no blocking， no deformation， can be reused after cleaning.
Color: White
Size: Approx. 100 x 13.5x 3cm (L*W*H)

1 x Filter Cotton