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FX6 High Performance Canister Filter

SKU# 3941

Availability: In stock


Quick Overview

  • Ultra powerful canister filter boasts a 563 gph flow rate!
  • Smart Pump Technology (SPT) ensures optimal performance
  • Includes all media required for highly effective filtration
  • Mega capacity filter holds 5.9 L of filter media
  • Integrated dials remind you when maintenance is required
FX6 High Performance Canister Filter - Box

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  • FX6 High Performance Canister Filter - Box
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  • FX6 High Performance Canister Filter
  • FX6 High Performance Canister Filter
Building on the immense success of its predecessor, the Fluval FX6 High Performance Canister Filter delivers unparalleled filtration for freshwater and marine aquariums up to 400 gallons in size. Engineered to maintain the cleanest and clearest water, this super-capacity canister filter is packed with innovative features designed to improve performance, simplify operation, and enhance the overall fishkeeping experience.

The Fluval FX6 comes equipped with a powerful 925 gph pump that operates at a very modest 43 watts of electricity. This translates to 563 gph of effective multi-stage filtration, creating a cleaner and healthier aquarium environment. Incoming water passes through a heavy-duty telescopic strainer to prevent clogging, and filtered water is returned to the aquarium via a dual, multi-directional output nozzle that can be adjusted to create specific water flow patterns.

To ensure optimal performance, the FX6 features patented Smart Pump Technology (SPT). This advanced, self-regulating system constantly monitors the pump, measuring impeller force and speed to maintain powerful output, super-quiet operation, and energy-efficiency. Enhanced motor technology also allows the new and improved FX6 to outperform the earlier FX5, while consuming 10% less energy.

The multi-stage Fluval FX6 boasts a remarkable 5.9 L media capacity, and comes complete with all the media required for high-powered filtration. Filter media is housed in 3 stackable baskets that can be fully customized to suit the unique needs of your aquarium. The baskets are precision engineered to eliminate bypass, and each is lined with a foam insert for effective mechanical pre-filtering. Instant-release t-handles allow easy lifting and separation of the media baskets for effortless maintenance and media substitutions.

The Fluval FX6 offers an assortment of features designed for user-friendly installation, operation, and maintenance. The included Click-Fit AquaStop valves allow quick setup and leak-free maintenance. These valves rotate and are positioned at a 45 degree angle for increased accessibility during the installation process.

A self-starting feature activates the FX6 without the need for priming, and purges unwanted air that may have entered the filter during setup. Every 12 hours, the pump shuts down automatically and the air evacuation process is repeated to ensure uncompromising performance. The FX6 also includes two manual maintenance dials located on its lid. These helpful indicators can be used to mark the last time maintenance or media changes were performed.

Finally, the FX6 includes a handy purge valve with drain hose for maintenance and flushing of the canister, and a water change feature that puts an end to awkward and inconvenient bucket carrying! (water change kit sold separately). For quality assurance and peace of mind, the Fluval FX6 High Performance Canister Filter is backed by a 3 year limited manufacturer's warranty.

Included Filter Media:
  • 6 x Foam Filter Blocks
  • 2 x Bio-Foam Pads
  • 1 x Carbon Impregnated Foam Pad
  • 2 x Bio-Max Rings (235 g)
  • 2 x Universal Filter Media Bags
Additional Information
SKU 3941
MPN A219
UPC 015561102193
Brand Fluval
Total Watts 43 W
Inlet Size 1"
Outlet Size 1"
GPH 563 gph
Max Head Height 10.8 ft
Dimension 17" dia. x 21" H
Media & Parts

Do you have questions about this product?

Get answers from real customers and in-house experts with AnswerBox.

5 Questions | 5 Answers
Displaying questions 1-5
  • Q:

    Can this be used in salt water?
    Asked on 2/5/2015 by Thunder from NE Ohio

    1 answer



      Yes, the FX6 from Fluval can be used in both freshwater and saltwater applications as per the manufacture.

      Answered on 2/9/2015 by Josh L
  • Q:

    Can you run this filter at the same level as your tank? Or dose it have to be below the tank to run properly?
    Asked on 9/8/2014 by al from Ottawa area

    1 answer



      The FX6 must be installed underneath or below your aquarium to function properly.

      Answered on 9/15/2014 by Josh L
  • Q:

    does the fluval fx6 have any leaking issues?
    Asked on 7/29/2014 by rob from bowmanville on.

    1 answer



      None that we are aware of.

      Answered on 11/17/2014 by Anonymous
  • Q:

    What are the measurements of the entire unit? and what is the height with the hosing?
    Asked on 4/18/2014 by Christina

    1 answer



      The Fluval FX6 filter includes 13.1 ft (4 m) of 1" diameter tubing, purge valve hosing, 3 removable media baskets with mechanical foam inserts (1.5 Gallon or 5.9 Liter total media capacity), Bio-Foam media, BioMax media, Carbon pad, 2 media bags, intake & output assembly, rim connecters, metal clamps, and user manual. The dimensions of the actual unit is 17" in diameter by 21" in height.

      Answered on 4/22/2014 by Josh L
  • Q:

    i followed install instructions and the pump seemed to start, but then isn't finishing the priming cycle. any thoughts? i put 2 gallons into the canister before connecting it.
    Asked on 2/25/2014 by Jim from naperville, illinois

    1 answer



      I recommend contacting our support line to speak with one of our techs at 1-888-824-4257.

      Answered on 3/11/2014 by Josh L
Displaying questions 1-5

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