The Best Filter for 55 Gallon Aquarium in 2021


Having the best filter for 55 gallon aquarium, you’ll keep your tank clean to maintain a healthy living surrounding for your tank friends.  It’s what you need if you want to maintain the health of your fish pets and prevent them from suffering from stress.

Otherwise, they might suffer from ammonia stress and later poisoning or even death. It is because your tank can get dirty easily and be loaded with chemicals, contaminants and other impurities especially if you have a high bio load.

To help you find the right tank filter,   here is a guide that outlines the top picks in the category, each with their pros and cons for comparison. Later, you will also find a buying guide on the features to look for when shopping around and weighing your options. Let’s get started.

What is the Best Filter for 55 Gallon Aquarium in 2021

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Top 6 Best Filter for 55 Gallon Aquarium Reviews

1. MarineLand Penguin filter for 55 gallon aquarium


MarineLand Penguin is a decent pick when it comes to a filter that works well for a 55-gallon tank. You can count on its outstanding features and functions that make it efficient in keeping a healthy living environment for your fish.

The MarineLand is a choice among tank filters. It receives thousands of positive feedbacks from consumers worldwide.  This filter works for both saltwater and freshwater tanks. It is reliable and advanced when it comes to tank filters.

This All Penguin BIO-Wheel Power Filter is also the go-to choice for its easy to set up three-stage filtration. It is also ready to use, something good for beginners who are still learning the processes of setting up a tank.

This filter can remove harmful elements like ammonia from the water. It can also work in removing contaminants that would otherwise cause stress, sickness or even death to your pets.


  • Three-way filtration for absolute cleaning
  • Black Diamond Premium Activated Carbon
  • Two-Piece Vented Covers
  • Can remove odor, impurities and discoloration
  • Adjustable Mid-Level Intake


  • A bit bulky

2. Penn Plax Aquarium Cascade Canister Filter


The Penn Plax Aquarium Cascade Canister Filter can be what you need if you want a reliable and efficient filtration system. This Cascade Black 700 Elite is the powerful filtration system you need for your saltwater or freshwater tank.

One of its unique features is the easy to use primer that is also easy and fast to install. You don’t need to worry about anything else if you have this filter even if you are a beginner in the process.

In addition, you can remove the flow valves easily, allowing for quick and easy maintenance while the output, input and hoses are in the tank. More so, you will appreciate that this item is versatile that you can use it for a tank with up to 65 gallons in capacity.

All the replacement media and parts are OEM from Penn Plax factories. This model also comes with accessories like a canister housing, tubing, all tubes, Bio Foam and ceramic rings, to name some.


  • Powerful filtration system
  • Different stages of filtration
  • Easy set up and use primer
  • Easily removable flow valves
  • Complete accessories including tubes, canister housing and algae magnet


  • Noisy filter

3. Aqua Clear Fish Tank Filter for Aquariums up to 70 gallons


If you’re looking for a powerful and versatile tank filter, you might want to check out the Aqua Clear Fish Tank filtration system. This item is versatile enough that it can accommodate and filter a tank of up to 70 gallons in capacity.

In addition, the Aqua Clear 70 Power Filter can offer a three-way filtration, making it one of the most effective around when it comes to ensuring that your terrarium or aquarium remains clean for a long time.

The AquaClear Power Filter can provide your tank with varying selection of flow rates for different aquarium sizes. More so, it has a unique design, which allows for six times of more media volume.

This model also has a solid warranty of up to two years if what you purchased has defects in workmanship and material.


  • Powerful up to 7 times larger than competition
  • Unique design and elegant appeal
  • 3-way filtration
  • Patented Re-filtration System
  • Activated Carbon Filter Inserts


  • Shorter warranty

4. Tetra Whisper EX Silent Multi-Stage Power Filter for 55 Gallon Aquarium


The Tetra Whisper EX Silent Multi-Stage Power Filter is one of the best filters for aquariums with 55 gallons capacity. For one, it includes a cartridge carrier that can prevent unwanted drips and keep your hands clean.

In addition, this model is with a bio-scrubber that works by eliminating impurities, odors and discoloration. It can also remove nitrites and ammonia, which can cause stress and later sickness to your tank friends.

This model also comes with the Timestrip technology that lets you know when the filter needs changing. All you need to do is change it when you notice that the strips become red indicating carbon’s been used. Finally, this model is also compatible for use in turtle tanks.


  • Bio scrubber removes nitrites and ammonia
  • Large capacity up to 70 gallons
  • Ready and easy to use
  • Also ideal for terrariums
  • Timestrip technology indicates filter changing


  • Complaints of high noise levels

5. Fluval C Power Filter for 55 Gallon Fish tank


Fluval is a reputable brand chosen by many aquarists all over the world for its solid features that make it an efficient filtration system for your tank.  The C4 filter is powerful that is offers up to five stages of filtration unlike just three of the competition.

In addition, the tank filter is also with a high capacity up to 70 gallons, giving you more value out of your spending.

More so, you will appreciate that it can filter up to 264 gallons per hour, making it extra powerful and valuable for fish tank owners that want to get more out of their spending.

You will also appreciate that it comes with a cleaning indicator telling when you have to clean and rinse the poly foam.


  • Five stages of filtration
  • Can maintain a healthy fish environment
  • Can filter up to 70 gallons
  • Comes with a cleaning indicator
  • Easy and quick maintenance


  • Feels and looks cheap for some users

6. Polar Aurora 266GPH External Aquarium Filter with Builtin Pump Kit and UV


One of the most reliable filter kits that work for 55-gallon tanks is the Polar Aurora 266GPH External Aquarium Filter. This item is also compatible to work with a tank of up to 75 gallons.

It offers a flow rate reaching up to 265 gallons per hour, making it one of the most efficient around, too. This item also features an integrated UV sterilizer that works by controlling bacteria and algae spores. It also aids in clearing the water.

It also comes with three pieces of media trays, which are capable of handling filtration media choice. This model also includes an adjustable spray bar, something helpful in adjusting the output flow. It also has a self-priming function, eliminating manual siphoning that may be a hassle for many.


  • Compatible for tanks up to 75 gallons
  • Easy to set up and use
  • Includes a Built-in Pump Kit Canister
  • Self-priming pump


  • Pump struggles with much elevation

Filter for 55 Gallon Aquarium Buying Guide

It is uneasy to find a filter for the 55-gallon tank because of the wide range of selection. Especially if you’re a newbie, you might have to spend effort and time in the research process. To help you, you can refer to the following factors to consider when shopping around and comparing your choices.

Size and function

When it comes to finding a filter for the 55-gallon tank, you should be look into your options closely because a filter can occupy a large space in your aquarium.

So if you are into adding some decorations to the tank, you should look for a filter that is powerful but does not consume much space.

You should also find a filter that can provide effective filtration that can offer mechanical, biological and chemical filtration but at a small size.

You might also want to go for a canister filter that can maintain the cleanliness but will not cause any distraction to the beauty and appearance of your tank.   It is usually hanging or hidden from view in a compartment or cabinet.  It can also work for both freshwater and saltwater tanks.

Effective maintenance

You should look for a tank filter that has good priming, ensuring that the filter will work by having the water flowing through the tubes without any hassles and avoiding air pockets to prevent overheating. If you’re not into much maintenance, you might want to opt for a self-priming filter.

Easy installation and parts’ durability

If you’re a beginner, you might find it hard to install the filter.  Find a filter that you can install easily and properly.   In addition, check that the filter has easy to replace cartridges and parts.  Also, you must ensure that its parts are durable so that you don’t need to replace them often.


You must also find one that can work on the filtration type you want. But for the best results, you might want to opt for a filter that can provide a three-way filtration.

What is a Filter for 55 Gallon Aquarium?


This filter is the suitable filtration system that works well for the 55-galllon tank.  In many cases, the best ones can also accommodate filtration of tanks with up to 70 gallons or more in capacity. Nevertheless, a filter works by maintaining a healthy living environment for your tank friends.Refer to the above guide for the things to look for and reviews of good filters for the 55-gallon tank.

Types of Filter for 55 Gallon Aquarium

In addition to the things to consider when shopping around for a filtration system, you should also know the types of filter available to know what to expect.

Power filter: It is a powerful filter that can be used to suck up the water from the tank through a siphon tube. It can also be space saving because it can be hang at a filter’s back. It uses a filter pad that you can use in loading a media.

Undergravel filter: It is another type of filter that you can choose for your tank. It is usually placed under the substrate or gravel. This type makes use of uplift tubes to work, but it is not for a primary filtration use.

Internal filter:  This type is often use for a small tank like a 20-gallon tank or something smaller. It can be installed by sticking to the glass of the tank, using an airline in sucking up any debris and dirt.  This internal filter type isn’t intrusive and small, so it does not distract the decoration of your tank.

Sponge filter:  It can work to provide three-way filtration. You can opt for it if you are looking to keeping baby fish and breeding. It does not emit much noise unlike other types do.

Canister filter:  It works well for both freshwater and saltwater fish and is often recommended for those looking to use a larger tank.  However, it might not be suitable for small fish tanks due to its suctioning power.

Why Do You Need Filter for 55 Gallon Aquarium?

You need a filter for the 55-gallon tank for reasons. For one, it maintains the cleanliness of your tank, clearing out its debris and impurities.  With it, you can save effort and time from cleaning your tank often.  So if you’re a busy collector that doesn’t want to clean your tank often, you should use a filter.

In addition, you need a filtration system for your tank because it can help keep your fish healthy. Such can work in removing the nitrites and ammonia from the water depending on the filter you have chosen. Using one, you can prevent the stress of your tank friends. Otherwise, they might become sick and later die of ammonia poisoning.

Using a filter, you can maintain the clarity of the water from your tank because such can work to provide mechanical filtration in removing contaminants. One can also offer good bacteria colonization that can be helpful in maintaining the healthy habitat of your tank friends.

There you have some of the advantages to get by using a powerful and effective filtration system. Definitely, you need one if you want to keep the cleanliness of your tank and provide your tank friends with a healthy living environment.

Frequently Asked Questions


How many filter cartridges do i need for a 55 gallon aquarium?

For this tank size, you need about 550GPH because it is quite large and long.  As a suggestion, you might also want to install two filters, with one on every side of the tank in order to get an efficient filtration. Again, two filter cartridges is the ideal number for this tank size.  To get started, you might want to refer to the above guide for effective and efficient filters.

How does filter for 55 gallon aquarium work?

This filter works by clearing the water and maintaining a healthy living environment for your tank friends.  It can keep the water clean easy and fast, so it can save you plenty of effort and time in doing the manual work of cleaning your tank.

It works by filtering the tank from impurities, contaminants, debris, nitrites, ammonia and chemicals. Some of them also provide shelter around it for biological filtration, offering good bacteria habitat that’s valuable for your tank friends.

How often to change water filter for 55 gallon Aquarium?

You must change the filter cartridge once monthly or if you would notice a reduction in water flow.  On the other hand, there are also charcoal filters that can last up to one month, but there are some to change every couple of weeks in order to keep it active.

Where to buy filter for 55 gallon Aquarium?

You can buy a tank filter in pet supplies stores, tank supplies stores and online marketplaces like  For the best deals, you might want to proceed to Amazon because it offers affordable prices, reputable brands and innovative filters.  Here, you will also be able to compare a wider range of selection from the most popular brands on the market as well as customer reviews.


The filtration is what you need for the cleanliness and maintenance of your tank. With it, you can maintain the health of your tank friends and ensure that they will remain happy!

Using a filtration system for the 55-gallon tank, you can also avoid the accumulation of bad bacteria, heavy metals, contaminants, nitrites, ammonia and debris that will otherwise impure your tank and make it unhealthy for your pet fish.

To get started in the selection process, you can refer to our top reviews and buying guide that outlines the considerations when finding a good filter. We do hope that you can choose the right filter for you after reading this guide.  Buy the best filter for 55 gallon aquarium today!

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