1. Improve the Water Quality: Suitable for seawater, fresh water and water tank

2. Reduce the Fish Mortality: Great to filter water, give the fish a better living life

3. Durable and Reuse: Cleaned once a month, no blocking, no deformation, can be reused after cleaning

4. Size Available: The size can be cut freely as you need

5. Decrease the frequency of fish tank water changing

Model: XY-1812 Bio Sponge

Dimension: 64*12*2CM

Color: black