
FX Series
Designed for aquariums up to 400 US Gal / 1500 L, FX comes equipped with all the power, media capacity and reliability you’d expect from a high-performance filter.
Patented Smart Pump™ performance-optimizing technology
Intricate multi-stage filtration with built-in powered water change system
Basket-in-basket tray design offering massive media capacity
Available Models

Multi-Stage Filtration
FX Series filters feature 2 inset red baskets for greater media capacity and flexibility. As with all Fluval filters, water flows through each media stage in proper order to ensure thorough cleaning. This process is more efficient and effective than some competitive filters, which force water through all stages in one pass.

Wide Media Selection
Discover Fluval’s complete range of authentic media solutions, offering higher quality, consistency and effectiveness to help support the overall health of your filter and fish.
Pre-Filter

Bio-Foam
Biological

Bio-FX

Bio-Foam+

BIOMAX
Mechanical

Quick-Clear

Max-Clean

Carbon Foam Pad
Chemical

Carbon

Ammonia Remover

Zeo-Carb

Peat Granules

Phosphate Remover Pad

Nitrite
Remover Pad

Ammonia Remover Pad

Free Media Included
FX2 | FX4 | FX6 | |
---|---|---|---|
Bio-Foam | 4 | 4 | 6 |
Bio-Foam+ | 1 | 1 | 2 |
BioMax | 2 | 2 | 2 |
Carbon Foam | 1 | 1 | 1 |
Media Bags | 2 | 2 | 2 |
Seamless Water Changes
The FX4 and FX6 filters feature a multi-functional utility valve to empty the canister and perform seamless water changes without disturbing your setup or tank inhabitants. As an added bonus, two convenient hosing clips located on the filter lid allow for storage when not in use.
The FX2 filter is so compact and lightweight that it can
easily be drained manually, even when filled with water.
Additional Features

AquaStop Click-Fit Valves
Leak-free fast assembly

Versatile Intake
Telescopic stem and anti-clog strainer

Twin Output Nozzles
Multi-directional for customized water currents

Innovative Rim Connectors
Flexible and secure connection

Self Priming
Just add water and Smart Pump™ does the rest

Rubber Feet
Reduce vibration