Fluval Flex Nitrite Remover – 4 x Duo-Packs
Fluval Nitrite Remover neutralizes, adsorbs and traps nitrite and nitrate.
Key Features
- Chemical filter media
- Removes harmful nitrite
- Ideal for new, heavily stocked and dirty aquariums
- For best results, replace monthly or as required after testing water with your Fluval test kits
- Designed specifically for the Fluval Flex, Spec and Evo aquarium series
- Convenient 4 x Duo-Pack format
| Specification | Details |
|---|---|
| Product Type | Nitrite and nitrate remover |
| Filter Media Type | Chemical |
| Compatible Systems | Fluval Flex, Spec, and Evo series |
| Package Contents | 4 x Duo-Packs |
FAQ
How often should I replace the Nitrite Remover?
Replace monthly or as required after testing water with your Fluval test kits.
Is this product compatible with all Fluval aquarium models?
Yes, it is designed specifically for the Fluval Flex, Spec, and Evo aquarium series.
Does this product remove nitrate as well?
Yes, it neutralizes, adsorbs, and traps both nitrite and nitrate.

Joanne White –
Used this in a new tank with high nitrite levels. The water quality improved noticeably within a week. Easy to add and works well with my Fluval Flex filter. I followed the replacement schedule and saw consistent results.
Christian Hodges –
Good product for new tanks. Nitrite levels dropped quickly after first use. The duo-pack format makes it convenient to keep on hand. I still need to test water regularly to know when to replace.
Heather Wilson –
Perfect for a heavily stocked tank. After a few weeks of use, the nitrite readings were stable and safe. Works seamlessly with my Fluval Evo filter. No issues with compatibility or performance.