Fluval FX6 High Performance Canister Filter
Designed for aquariums up to 400 gallons, FX6 is the high-capacity workhorse of Fluval’s canister lineup, enhanced with all the power and reliability you’ve come to expect from a high-performance filter.
Key Features
- Multi-stage filter pumps out an astounding 925 gallons (3500 L) of water per hour
- Improved motor technology provides better performance while consuming 10% less electricity than previous generation
- Smart PumpTM– advanced microchip technology continuously monitors and optimizes pump performance
- Self-starting – just add water, plug in and Smart PumpTM will take over. Trapped air auto-evacuated every 12 hours to ensure maximum efficiency
- Easy water changes eliminate the need to manually restart the filter
| Specification | Detail |
|---|---|
| Flow Rate | 925 gallons per hour (3500 L/h) |
| Power Consumption | 10% less than previous generation |
| Filter Capacity | Up to 400 gallons aquarium |
| Motor Technology | Improved motor with Smart PumpTM |
| Self-Start Feature | Auto-evacuates trapped air every 12 hours |
FAQ
What is the maximum aquarium size compatible with the Fluval FX6 filter?
The Fluval FX6 is designed for aquariums up to 400 gallons.
Does the FX6 have any energy-saving features?
Yes, the improved motor technology consumes 10% less electricity than the previous generation.
How does the Smart Pump™ technology work?
The Smart Pump™ uses advanced microchip technology to continuously monitor and optimize pump performance for consistent filtration.



Luke Abraham –
The FX6 has been running smoothly in my 300-gallon tank for over six months. The self-starting feature is a game-changer—no need to manually turn it on. Water flow is strong and consistent, and the filter handles the bioload well without any clogging issues.
Jake Pullman –
I appreciate the quiet operation and the high flow rate. It’s easy to maintain, and the smart pump adjusts automatically. After a few weeks, I noticed better water clarity and fewer algae blooms.
Robert Glover –
Installed it in a 400-gallon reef tank. The filtration performance is excellent, and the energy savings are noticeable. The auto-evacuation of trapped air keeps the system running efficiently without any manual intervention.