After launching the Fluval 07 Series, Fluval has discontinued the 06 Series

For a fish-hobbyist, keeping the aquarium water healthy and clean is very important. The Fluval brand is contributing to this by building successful filtration systems. In this article, I’ll introduce you to the Fluval 406 canister filter. It has amazing functionality and filtration system that provides the cleanest and healthiest aquarium environment.

In this Fluval 406 canister filter review article, I am going to provide every detail of it’s features, specification, set up process, user manual, pros, and cons.

At the very end, I will put my honest opinion if you should invest in this filter.

Why is Fluval Brand so popular?

Fluval is a leading brand that offers aquatic products that are advanced and innovative. It has a proud history of winning the heart of fish-hobbyists for 30 years. This company has been consistently making a reputation in the global market for producing technically developed products.

It was 1982 when Fluval first started making canister filters. Till now, it has been the only reliable name in the aquatic products market. They provide convenient, dependable and easy to use canister filtration systems. Fluval products have achieved a special place in people’s heart for its splendid filtration capacity.

Fluval 406 Canister Filter Review

The Fluval 406 Canister Filter is a unique designed external canister filter. It is very efficient and needs fewer maintenance requirements. Comparing to other filters, this works faster and better.

If you are looking for an external canister filter that filters your tank in an easy and smooth way, then you can absolutely go with this one. As I have said, it is a less maintenance filtration system, you don’t need to worry about the cleaning and maintaining quite frequently.


This filter works more efficiently with its additional features. Like- for easy hose disconnections it has original Aqua-Stop valves, for simple cleaning as well as maintenance it includes lift-lock clamps that work in single motion. And for mechanical, chemical and biological filtration there are multiple removal filtration baskets. It is suitable for both fresh and salt water. This filter is suitable for aquariums up to 400 L (100 US Gal).

How Does Fluval 406 Look?

The Fluval 406 canister filter comes in a nice square-shaped box design. It contains 35 to 50% water than round shaped canister filters of the same size. It is 25 X 20 X 50.8 cm (10 X8 X 20 in) in dimensions. This filter is built on the base of Fluval 05 Series filters.

The best part of this filter is that it comes in a compact space-saving design. It can comfortably fit into any aquarium cabinet. It is very silent, so it won’t disturb the fishes in the aquarium.

What Is the Building Material of Fluval 406?

It is necessary to check the building material when purchasing a canister filter. As the Fluval 406 canister filters’   base material is high-quality plastic, it is rigid enough to be suited in an aquarium. Plastic helps it to be lightweight. So that it can provide high flexibility. Also, being light-weight makes this filter highly portable and efficient.

How Does Fluval 406 Work?

The Fluval 406 canister filter works in an innovative way that delivers many practical benefits. Its working method includes less maintenance frequency, rapid setup, and silent operational system. It can filter up to 380 gallons of water per hour.

With a natural lift clamp, you can easily attach and remove it. Thanks to the aqua-stop valves, this filter has a water-tight enclosure. Without stopping the pumping, you can disconnect the hose. This eliminates the need to prime it again after removing the hose. You get the facility of customizing the filtration system with removal baskets. This allows you to add filter media of your own choice.

Fluval 406 Canister Filter Features

  • Developed motorized hydraulic performance that causes less maintenance frequency
  • Increased flow rates as well as head pressure.
  • For purer and healthier water, it has enhanced water filtration system.
  • Provides better biological filtration by adding Bio-Foam media
  • Can perform 8 to 15% noiseless operation with sound-dampening impeller design
  • Low chance of breakage with its redesigned impeller cover
  • Efficient priming technology for stress-free starting
  • Heavy lift-lock clamps for water-tight enclosure
  • Improved security with hose bolt nuts


  • Adjustable for aquariums up to 100 gallons.
  • The flow rate is 1450 LPH (393 US GPH)
  • Holds 35-50% more volume than round shaped canister of the same size
  • Endowed with a smooth intake strainer that doesn’t get clogged and a foam screen that has two layers.
  • Made with an excluded aqua stop faucet, multiple filtration bags along with rim adapter assemblies

Some Alternatives You May Also Consider

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And the good news is the next generation of Fluval 06 series, known as 07 series, is launched already in the market!

The Fluval 406 Manual

The Fluval 406 Canister Filter manual consists of information about the specifications, warranty, safety information, problem troubleshooting. There is also a setup guide, maintenance tips, other relevant instructions. You can read it briefly on

Warranty Information

You will enjoy 3 years limited warranty from the day of purchasing Fluval 406 Canister Filter. This warranty period is valid only for defects caused by the manufacturing process. For a replacement of parts, you need to show 100% accurate proof of buying the filter. Also, you need to return the filter with all necessary parts of it.


  • Maximum versatility and premium performance
  • Advanced Motor Technology
  • Silent Operations
  • Self-motivating
  • Smart water change port
  • Better hosing
  • Very well outlet with a good flow rate
  • Easy to maintain
  • Enough space for biological media
  • Excellent cleaning capacity


  • The impeller may tend to create problems after using about 6 months
  • Some customers complained about leaking after using for several months

Final Thoughts

Although the Fluval 406 canister filter may have some issues, I think it is great for handling medium as well as big sized aquarium. I know it can be a little bit expensive, but nothing good in this world is cheap. According to many customer reviews, the filter is long lasting, durable and very efficient.

Don’t just listen to my words, go and get the Fluval 406 canister filter for your aquarium. I definitely think you’ll get your money’s worth with this canister filter.

Read our relevant canister filter reviews for more options –

  1. Fluval FX4 Review
  2. Fluval G6 Canister Filter Review
  3. Fluval FX6 Review
  4. Sunsun Canister Filter Review
  5. Penn Plax Cascade 1000 Canister Filter Review
  6. Fluval 306 Review
  7. Fluval G3 Review

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