![Amazon.com : ViaAqua Aquarium Bio Sponge Filter Media Pad Open Cell Foam Cut-to-fit Matten Filter Fish Tank Sump Divider 23.6" x 17" x 2" : Pet Supplies Amazon.com : ViaAqua Aquarium Bio Sponge Filter Media Pad Open Cell Foam Cut-to-fit Matten Filter Fish Tank Sump Divider 23.6" x 17" x 2" : Pet Supplies](https://m.media-amazon.com/images/I/91sArfFFR+L._AC_UF1000,1000_QL80_.jpg)
Amazon.com : ViaAqua Aquarium Bio Sponge Filter Media Pad Open Cell Foam Cut-to-fit Matten Filter Fish Tank Sump Divider 23.6" x 17" x 2" : Pet Supplies
![Hamburg Matten Filters are space saving, non leaking and supremely efficient. HMF`s do better when not cleaned. Hamburg Matten Filters are space saving, non leaking and supremely efficient. HMF`s do better when not cleaned.](https://fish2water.com/resources/HMF%20malawi%20corner%20filter.png)
Hamburg Matten Filters are space saving, non leaking and supremely efficient. HMF`s do better when not cleaned.
![Just installed my first matten filter on my shrimp/ endler tank and i really like it. The flow is amazing too. : r/shrimptank Just installed my first matten filter on my shrimp/ endler tank and i really like it. The flow is amazing too. : r/shrimptank](https://i.redd.it/swpxc65mal761.jpg)