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Fluval 3 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.
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