Fluval 306 Review: Is It Really Worth The Hype?

Utilize this Fluval 306 Review to make the right purchase of the best canister filter that’s best for you. This review consists of innumerable lists of features and guidelines. It’s so unique and highly reliable to depend on for providing your guppies with fresh water.


This Fluval canister filter has the capability to filter aquarium with water measurement of about 70 gals. It’s so easy to set up and cleaning its parts is also easy.

In short, it’s a product that you can control the amount of pressurized water entering into the unit. This is a unit that you’ll admire for its performance. It primes the liquid by itself and ensures that it passes through different sections in the filter media so as to ensure that the output is highly awesome.

And, guess what? The media is easy to remove. Of course, what this implies is that you can discreetly select suitable media for different tasks.

In other words, this product provides you with the flexibility to use it in removing any size of sediments in your aquaporin.

Also, it will interest you to know that this doesn’t make noise at all even while it’s in use. You can even listen to music on your iPod while supervising it. Unlike those that you can’t trust your aquarium, the construction of this product has a systematic design in its interior which consists of multi-filters.

Not only its interior is unique, but also the exterior. There are rims, connectors, lock clamps and other advanced technology in the outer part of the machine.

The nominal buyers, on the other hand, believe that this product is one of the best easy-to-use canister filters in the world. This is based on the fact that it’s lightweight and has a durable plastic tubing with an ergonomic design that makes it unique.

In fact, there are other features that are to be explained below. Please, read on.

Fluval 306 External Filter
  • Multi-stage filtration for healthy fresh & saltwater aquariums
  • Suitable for aquariums up to 70 gallons
  • Sound dampening impeller design for a quieter operation and head height (max.) is 5.8 feet
  • Equipped with a clog-proof intake strainer and a dual layer foam screen
  • Built with a patented Aquastop Valve, multiple filtration baskets, and rim connector assemblies; 3 year warranty


  • This makes no noise while it’s on the operation.
  • You can easily lug it from one place to another due to its lightweight.
  • Has an ergonomic structure with nice designs.
  • It’s in a rectangular shape with nice edges.
  • Can perfectly be used for tanks that contain 70 US gallon of water.
  • Can be used for any kind of tank.
  • Backed with 3 years’ warranty.
  • It’s highly affordable.
  • The filter media is removable and it also has enough space to accommodate the media that you prefer to use.
  • This unit can be used for a long period of time.


  • A bit pricey compared to others.

Features & Benefits

Advanced Motor Technology

This advanced motor technology makes it functional for self-priming. It’s so strong and durable that you can use it for a long period of time. In fact, you can make micro-bubbles with it.

All you just have to do is to insert the hoses inside the tube partially before clamping them. This action would make your tank to be cloudy though.

Also, this technology makes it easy to halt the performance without removing the hose at all. It’s just so easy to make use of.

However, as a new user, you probably may find out that your unit is leaking. All you have to do is lubricate the O-ring of the tube with silicone grease, then re-fix it. It’s just great for anyone to utilize in the maintenance of their aquarium.

First Class Design

The major parts of it is made of durable plastic. It has a dimension of 7.6 x 14.5 x 16.2 inches and it weighs 9 pounds.

Also, you can find this product in series. The categories that you can find it is 106, 206, 306, and 406. The major difference in the series is their sizes.

This particular unit is rectangular in shape and has three large baskets in it so as to make it easy for users to insert their desired filter media. Its size is of no equal as each of the baskets holds 35-50% of water more than other products that possess the same size.

It also has an ergonomic structure which makes it very usable anywhere.

In addition, it’s a dynamic product that is perfect for aquariums that hold up to 70 gallons of water.

Smooth Performance Guaranteed 

Of course, what would you expect from a canister filter that possesses mechanical, chemical and biological stages of large spaces?

These stages ensure that no sediment nor odor escapes into your tank. It has foams and independent modules that are technically designed to provide you with this great result.

With that being said, your killifish, and other living organisms would definitely survive the environment. It also has Aquastop valves which you can utilize to run the process without hose.

Even as versatile as it is, you can still enjoy easy-to-use mechanism as it consists of lids that are easy to lock and unlock. And, guess what? It’s lightweight and reliable to use for large tanks also.

The manufacturer, on the other hand, helps by making available a three years warranty.

Indeed, if there is only one reason you need to compel yourself in the purchase of this product, then it should be this. You know why?

Because the manufacturer’s customer service is customer friendly. They will provide you all the necessary support that you need.

Easy-To-Clean Design

You might be wondering if there’s a special list of procedures on how to clean this unit.The answer is no, it has none.

You can clean this unit just like you clean any other canister filter. This usually involves:

  • First, unplug the power cord. Then, switch off the valve and remove the water in the tube so as to ensure that your workplace doesn’t get wet.
  • Once you’re done, you can proceed by unscrewing the tubes.
  • Ensure that you check whether there is little water in the tube before endeavoring to separate them.
  • Afterwards, remove the gut and the motor by first unclamping, right at the four sides. 
  • You can then get a recommended brushing pad to scour the nooks and cranny of the unit.
  • Of course, you can decide to remove the impeller so that it’ll be meticulously cleaned.
  • Once you’re done cleaning it, you can just proceed by drying it.
  • Then, couple the unit together and begin to make use of it.

FAQ - Frequently Asked Questions

1. Can someone tell me if this unit requires aerated system?

Answer: The manufacturer didn’t include it in the instruction that you may be in need of one. However, you can use it provided you know how to do it yourself.

2. Do you mean I can begin to use it immediately when it’s delivered?

Answer: Of course! It comes with all the accessories that you need to get it started. Also, there is an instruction booklet that comes along with it. You don’t have to bother about solving many puzzles before assembling it. It’s very easy to assemble.

3. Would this hold its prime perfectly well even when it’s disconnected from the power source just like other units in the series?

Answer: With Ease! It will. It’s a product that you’ll enjoy using.

4. How I can reduce the ammonia level in my tank?

Answer: That’s very simple, all you have to do is to properly change the water. If you find out that there is no tangible change after you have done this, then reduce the number of fishes.

5. How many of this Fluval, 306, canister filter do I need for my 250 US gallon tank?

Answer: If this is basically used for tanks that contain 70 gallons then you should be gunning for, at least, 4 of this.

Final Verdict

This review provides adequate information on why you as a potential buyer needs the Fluval 306 canister filter. In a nutshell, we encourage you to go for it given its amazing features and benefits. The manufacturer makes it so much easy to use by utilizing durable materials in constructing it.

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