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EquipmentFluval FX6 Reviews - The Powerful Filter Your Aquarium Always Need

Fluval FX6 Reviews – The Powerful Filter Your Aquarium Always Need

Are you looking for Fluval FX6 reviews? In fact, there are many reviews about this product, but you can hardly find one that isn’t meager and particularly focuses on the advantages and disadvantages of this canister filter.

But worry not; you can refer to this article to get a better overview of this Fluval FX6. 

By reading this article, you will get information about the highlights, weaknesses, and frequently asked questions many people have about this filter.

Wait no further; let’s figure out all the fuss about the most popular and recommended water filter system for aquariums on the market.

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Here are the specifications of the Fluval FX6. Let’s check it before coming to the product overviews. 

  • Capacity: 400 gallons ~ 1,500 liters
  • Circulation Of Filtering: 563 gallons/hour ~ 2,130 liters/hour
  • Pump Output: 926 gallons/hour ~ 3,500 liters/hour
  • Wattage: 43 W
  • Baskets For Media: 3
  • Mechanical Area: 325.5 sq. inches
  • Bio. Volume: 1.5 gallons ~ 5.9 liters
  • Filtration Volume: 5.28 gallons ~ 20 liters
  • Height: 10.8 feet ~ 3.3 meters
  • Warranty: 3 years

Fluval FX6 Overviews

Fluval FX6 Canister Filter
Fluval FX6 Canister Filter

Below is an overview of the features that Fluval FX6 Canister Filter brings to assist you in understanding its advantages and disadvantages for your aquarium. 

Suitable For Up To 400-Gallon Aquariums

You will be surprised at the tank capacity of this FX6; it guarantees the filtration of water for large tanks with a maximum capacity of up to 400 gallons (equivalent to a 1,500-liter tank).

With the advantage of suitability for large-capacity aquariums, the FX6 offers various responses that many filters cannot.

In addition, to work with a tank with a capacity of up to 400 gallons, the FX6’s pumping system is unarguably powerful. It ensures filter circulation of 563 gallons/hour and produces a pump output of 926 gallons/hour.

According to the principles of aquarium construction, the amount of filtered water should be equal to 6 times the total volume of the tank. 

In fact, Fluval FX6’s filtering power can also be used for small ponds. There is no such thing as over-filtering if you use this machine for smaller aquariums. However, a minimum of 150 liters is still required to ensure a place for installation.

This filter ensures the amount of clean water in the tank and the best environment for aquatic species.

One can say that FX6 is the perfect choice for those who have large aquariums with a minimum capacity of 150 liters or more.

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View More: Seachem Flourish Review: A Good Companion For Fishtank?

Priming System

Without a priming system, the filter’s motor can overwork because the water doesn’t run over the machine. That’s why the priming system is very important for the canister filter.

You will not have to worry too much about the air in the system because the filters inside are primed before use, and one of the unique features of the FX6 is the starter primer system.

Within 1 minute, the filter will be able to pump water, and with just 2 minutes more, it pushes all the air out of the system. Thus, the priming system helps minimize the risk of overworking caused by water.

Smart Pumping System

Smart Pumping System Of Fluval FX6 Canister Filter
Smart Pumping System Of Fluval FX6 Canister Filter

Inside the FX6 is an electronic control system that monitors the speed of the pump impeller. With the monitoring of this system, whenever the impeller speed cannot guarantee the standard pump performance, the filter will automatically stop working every 12 hours. 

The operation pause will push out trapped air, thereby ensuring maximum filtration efficiency is maintained.

If you see the pump stop working, don’t worry because it may be in the process of pushing the air out through the smart pump system.

Smart Reminded Maintenance

A smart canister filter will give you the most optimized features, especially in terms of maintenance. For Fluval FX6, you won’t face any difficulty determining when maintenance is necessary, thanks to the built-in monthly indicator signals.

With such a unique function, neglecting the maintenance schedule is almost impossible.

Adjustable Nozzles For Multiple Directions

You can adjust the direction of the nozzles to ensure filtration efficiency as well as aesthetics. For example, when you place Fluval FX6 in a corner, you can adjust the inlet and outlet of the nozzles to create directional water flows, thereby reaching the far corners of the aquarium.

It is one of many people’s most beloved features for creating a one-of-a-kind aesthetic for the aquarium. The direction of the water flow will bring a realistic feel to the aquatic surroundings.

Media Baskets

You can combine Fluval FX6 and filter media with a capacity of 5.7 liters. This water reserve is enough to support many different types of aquariums.

FX6 is quite flexible in combining with other types of filter media, such as mechanical, chemical, etc. If you combine FX6 with media filters, you should find ways to expand the media to ensure constant filtration for your aquarium.

Adjustable Valves

The Fluval FX6 has a valve system called AquaStop that allows the amount of water to be adjusted from the inlet and outlet pipes.

You can rotate the valves by 90 degrees to prevent water flow, and it will be very helpful for machine maintenance.

However, you should make sure there is no water left in the machine before doing this. In fact, to avoid mishaps, Fluval FX6 allows you to remove water from the machine by a drain valve.

Quiet Operation

Fluval FX6 Filter With Quiet Operation
Fluval FX6 Filter With Quiet Operation

Pumps are usually prone to make noise, but with the Fluval FX6, you won’t have to worry about this issue. Although it has a large pumping capacity, the noise generated is so small, you can’t hear it from a far distance.

You can hear a low, ambient noise when approaching the aquarium. However, it is still at a permissible level and does not have too much impact on your experience as well as the aquatic life in the tank.

Besides, many people love this Fluval FX6 because it does not create annoying vibrations like many other powerful pumps on the market.


  • Powerful pump
  • Suitable for large tanks with the capacity of up to 400 gallons
  • The great automatic priming system
  • Easy to maintain for the signals of the last water replacement
  • Easy to adjust nozzles with multiple directions
  • Convenient valve to empty the water inside canister 
  • Capacity media basket up to 1.5 gallons
  • Quiet operation without vibrations
  • Warranty for three years


  • Quite bulky
  • Suitable for only 150-liter or higher tanks
  • Need more filter media for water stock amount
  • Possibly to be damaged if the sand comes into the monitor

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How To Setup A Fluval FX6 Canister Filter

Set Up A Fluval FX6 Canister Filter
Set Up A Fluval FX6 Canister Filter

You only need to follow these seven simple steps to get a powerful Fluval FX6Fx6 Canister Filter for your aquarium.

Step 1: First, place the filter underneath the tank. It is one of the most basic things that any aquarist would understand its importance. 

Step 2: It is necessary to connect the input/output assemblies via the connectors. To make sure the conjunctions are tight, you want to lock each connector with the clamps.

Step 3: Next, arrange the hoses so that they reach your aquarium. It is advisable to cut the intake tube to extend six inches below the tank top. After that, you adjust the intake stem’s height to extend one inch below the water’s surface.

Step 4: Cut the output tube to extend it one inch below the water level. Then, use a clamp to lock the connection between the output nozzle and the end of the tube.

Step 5: In this step, you will remove the media baskets using the T-handle system.

Step 6: Upon completing the 5th step, you fill the media baskets. You only want to fill half of the media’s space to ensure no water leakage can occur.

Step 7: The final step is to arrange the filter baskets and put them inside the canister. After that, you lock the lid by tightening the eight latches.

How To Clean A Fluval FX6 Canister Filter

Fluval FX6 Filter
Fluval FX6 Filter

You can easily clean the Canister Filter Fluval FX6 with just seven steps:

Step 1: The first step is to unplug Fluval FX6 from the electrical source. However, before that, you want to close the AquaStop valves. 

Step 2: After unplugging, you will need a bucket to contain the water from the purge valve as it releases after opening. Then, please move the filter to the area that suits maintenance.

Step 3: At this step, you release the media baskets by opening the canister’s top. You want to leave at least half an inch of space.

Step 4: You can now access the pump to clean it. Then, let’s loosen the pump unit by unscrewing the screws in place. After that, you can easily clean the pumps and impellers by washing them with water.

Step 5: It is necessary to put the unit back together. 

Step 6: You replace the media baskets, stack them again, and ensure there is no excess space. Now, you will fasten the lid and repeat setting up the hoses. After that, you can open AquaStop valves.

Step 7: You can plug the filter into the electrical source. It will take a couple of minutes for a self-priming process. After all, let’s check for the water leaks as the machine starts.

Frequently Asked Questions Related To Fluval FX6

Fluval FX6
Fluval FX6

Fluval FX6 reviews bring you the popular questions that people are interested in FX6 always have.

By checking them, you can answer your puzzles and understand more about this product. You also can refer to more products in building aquariums at GA Pet Sitters.

Who Should Buy Fluval FX6?

It is recommended that you should use canister filters for tanks 150 liters or more. However, in reality, using the Fluval FX6 for 150 liters tanks is quite a splurge. 

Fluval FX6 is quite expensive compared to the investment in a 150 liters tank. You can choose more economical options that can still guarantee great performance for a tank of 150 liters.

As a result, aquarists often use and recommend Fluval FX6 and tanks with a minimum capacity of 240 gallons ~ 900 liters or more.

In addition, people prefer to choose Fluval FX6 for aquariums in the bedroom for its ability to operate very silently. However, it depends on each person’s noise tolerance, so you should make sure it doesn’t disturb your sleep.

Does Fluval FX6 Come With Filter Media?

Yes, it does. You can choose several suitable media for Fluval FX6, such as Seachem Purigen type or Activated Carbon.

Different filter media types will help you optimize constant filtration for your aquarium.

What’s About The Lifespan Of Fluval FX6?

It is difficult to determine the lifespan of a Fluval FX6 because its durability depends on your use.

Aquarists have tested it and confirmed that it is possible to use this canister filter for more than two years without any problems.

What you have to do is regularly clean and change the filter foam. With this maintenance, you can extend the life of your Fluval FX6.

Will It Fit The Plumbing That Was Set Up For A Fluval FX5?

Yes, it will. FX6 uses the same plumbing as the FX5 – the 1-inch hose. Therefore, if you have used FX5, you will have spare plumbing in case of any emergency. 

A Fluval FX6 Canister Filter
A Fluval FX6 Canister Filter

Final thoughts

Have you realized why so many aquarists love this Fluval FX6?

Through Fluval FX6 reviews, perhaps you understand the pros and cons of this highly-favored water filtering system. As a result, you can consider whether this product is suitable for your aquarium and preferences.

Hopefully, you can build a perfect aquarium and have a great experience with this canister filter.


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