Thickened Aquarium Biochemical Cotton Filter Foam Media Reusable Sponge Fish Tanks Filter Sponge Pad Skimmer

Size: White: 64x12x2.5cm LxWxT. Black/Yellow/Blue: 32x12x2cm LxWxT). Placement: White filter cotton can be placed at the top of the filter system. Black/Blue/Yellow filter cotton can be placed at the biological filter level. Specification: Model: Thickened Aquarium Biochemical Cotton. Size: White: 64x12x2.5cm LxWxT. Black/Yellow/Blue: 32x12x2cm LxWxT). Placement: White filter cotton can be placed at the top of the filter system. Black/Blue/Yellow filter cotton can be placed at the biological filter level. Package include: White: 1pcs/pack. Black/Yellow/Blue: 2pcs/pack. Feature: 1, The Biochemical Filter has the best effect on decomposing the excrement and the forage leftover. 2, Its multi-porous feature will avoid blockages and provide the largest adhesion area for bacteria. 3, The material has great thickness, it is durable. Can be used again after cleaning. 4, Can be cut any sizes as your needed. Note: 1 High requirements on the color or other feature buyers please know. The images m