- Sku: A213
Fluval FX Series High-Performance Canister Filter
The Fluval FX Series are high-performance external canister filters built for large and heavily stocked aquariums, from 175 up to 400 gallons. A basket-in-basket tray design delivers massive media capacity, Smart Pump technology self-primes and keeps flow efficient, and every model ships with the media you need to get started. Pick the size that matches your system below. Shop more gear in our saltwater and freshwater collections.
Why the FX Series
- Massive media capacity: basket-in-basket trays hold a huge volume of mechanical, chemical, and biological media.
- Smart Pump technology: self-primes, monitors flow, and automatically evacuates trapped air.
- Free media included: each filter comes loaded and ready to run.
- Big-tank power: models rated up to 175, 250, and 400 gallons.
- Quiet and stable: rubber feet reduce vibration and noise.
Choose Your Size
| Model | Aquarium Up To | Pump Output | Filter Circulation | Power | Price |
|---|---|---|---|---|---|
| Fluval FX2 | 175 gal | 475 GPH | 343 GPH | 27 W | $296.99 |
| Fluval FX4 | 250 gal | 700 GPH | 450 GPH | 30 W | $337.99 |
| Fluval FX6 | 400 gal | 925 GPH | 563 GPH | 43 W | $459.99 |
Detailed Specifications by Size
| Aquarium Capacity | Up to 175 US gal (750 L) |
|---|---|
| Pump Output | 475 US GPH (1800 LPH) |
| Filter Circulation | 343 US GPH (1300 LPH) |
| Canister Volume | 2.8 US gal (10.6 L) |
| Biological Volume | 1 US gal (3.9 L) |
| Power Consumption | 27 W |
| Dimensions | 13.4 x 13.4 x 16.5 in (34 x 34 x 42 cm) |
| MAP Price | $296.99 |
| SKU | A213 |
| Aquarium Capacity | Up to 250 US gal (1000 L) |
|---|---|
| Pump Output | 700 US GPH (2650 LPH) |
| Filter Circulation | 450 US GPH (1700 LPH) |
| Canister Volume | 3.7 US gal (14 L) |
| Biological Volume | 1 US gal (3.9 L) |
| Power Consumption | 30 W |
| Dimensions | 15.75 x 15.75 x 16.5 in (40 x 40 x 42 cm) |
| MAP Price | $337.99 |
| SKU | A214 |
| Aquarium Capacity | Up to 400 US gal (1500 L) |
|---|---|
| Pump Output | 925 US GPH (3500 LPH) |
| Filter Circulation | 563 US GPH (2130 LPH) |
| Canister Volume | 5.28 US gal (20 L) |
| Biological Volume | 1.5 US gal (5.9 L) |
| Power Consumption | 43 W |
| Dimensions | 15.75 x 15.75 x 20.8 in (40 x 40 x 53 cm) |
| MAP Price | $459.99 |
| SKU | A219 |
Which Size Is Right for You?
Match the filter to your aquarium volume and stocking level, and give yourself headroom. Big, messy, or predator tanks benefit from sizing up for more turnover and media capacity. All three FX models work in freshwater and saltwater systems.
Specifications, All Models
| Series | Fluval FX high-performance external canister filter |
|---|---|
| Media Trays | Basket-in-basket design, media included |
| Smart Pump | Self-priming, flow monitoring, automatic air evacuation |
| Operation | Rubber feet reduce vibration and noise |
| Water Type | Freshwater and saltwater |
| Available Models | FX2, FX4, FX6 (175 to 400 gallons) |
FAQ
Does it come with media?
Yes. Every FX filter includes the mechanical, chemical, and biological media you need to set it up.
How is the FX different from the 07 Series?
The FX filters are built for much larger aquariums, with far greater media capacity and stronger flow. Choose FX for big or heavily stocked tanks.
Freshwater or saltwater?
Both. The FX Series works in freshwater and saltwater aquariums.
Have a question?
Fluval FX Series High-Performance Canister Filter
