Replacement Sponge for bio sponge filter

Original Replacement Sponges for Xinyou's bio sponge filters, but also for all other air lift filters with the same sponge size.

The Bio-Filter replacement sponges are developed and manufactured from high-quality materials that exceed the life of comparable filters by lengths.
The Filter Sponge was manufactured according to the multi-layer principle and designed so that it has the largest possible surface and is easy to clean.

Notes and Tips
Immerse the filter sponge in the water for 5 minutes before use, so that the nitrifying bacteria can easily settle.
Do not use hot or fresh water when cleaning ... this would kill or affect the important filter bacteria. It is recommended to rinse the filter sponge in a bucket with the original aquarium water and to express it easily.