FLUVAL 4 FOAM
Fluval 4 Underwater Filter Foam Insert
- 2 Pack
- Fluval Foam inserts are specially sized to fit
- Foam inserts remove particulate wastes from the aquarium. They also provide many locations for the growth of beneficial bacteria.
The foam will gradually fill with trapped debris and require rinsing every two weeks. Re-use of the foam can help protect bacterial colonies and provide continual biological filtration.
