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- Specifially desgined for Fluval 306/307 & 406/407 filters
- Effective at removing and reducing nitrite
- Effectively traps floating particles for clear water (debris, excess food, and waste)
- Supports beneficial bacteria for a healthier aquatic environment
- Custom fit to increase filtration efficiency
- For best results, replace monthly or as required after testing water with your Fluval test kit
- Convenient 6-pack format
- For use in freshwater and saltwater aquariums
