Features:
High density sponge can effectively filter harmful ammonia and various impurities in the fish tank, providing your fish with a healthy and comfortable living environment.

2-3 weeks is based on the original good fish tank environment. In fact, you can choose to replace it in advance or later according to the filter effect of the fish tank.

Specifications:
Material: sponge
Color: see picture
Size: 2.75 x 0.7 x 0.7 inch

The package includes:
20 x Ammonia reducer filter pads

Note:
Manual measurement, please allow slight size error.
Due to different screen displays, there may be slight differences in color.