8 Best Filters for Goldfish – Pure Water for Healthy and Happy Pets (Summer 2022)

We reviewed the best filters for goldfish on the market and compiled this list of our favorites.
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Last updatedLast updated: June 03, 2022
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Goldfish are one of the most popular pets and they are relatively easy to care for. They do, however, require a bit of special care when it comes to their tank and filtration needs. Goldfish are very sensitive to changes in water quality and they require a filter that is powerful enough to keep their water clean.

The best filters for goldfish help to keep the water clean and aerated, and can also provide a place for your fish to hide. There are many different types and brands of filters available on the market, so it is important to choose one that is right for your goldfish and their tank.

Choosing a filter can be a difficult task. There are many different factors to consider, such as the size of your tank, filter media, and the flow rate. In this article, we will discuss some of the best filters for goldfish and what factors you should consider when choosing one.

Top 8 Filters for Goldfish Review 2022

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Features
  • Tank size: up to 10 gal/10-20 gal/20-30 gal/30-50 gal/50-75 gal
  • Filtration: 3-stage (mechanical, chemical, biological)
  • Flow rate: 75 GPH/100 GPH/150 GPH/200 GPH/350 GPH
  • Dimensions: 8.25 x 6 x 7.38 inches

More features: rotating bio-wheel, used with Marineland filter cartridges

The Marineland Penguin Bio-Wheel Power Filter is our Editor’s Choice because it is a top-of-the-line filter that provides the cleanest environment for your fish. Its powerful three-stage filtration system helps to keep your aquarium water fresh. The rotating bio-wheel helps to remove harmful toxins from the water, while the filter cartridges help remove debris and other particles that can cloud up your tank. The Marineland Penguin Bio-Wheel Power Filter comes in several sizes, so you can choose one that best suits your needs. Whether you have a 10-gallon tank or a 50-gallon tank, this filter can handle it.

The Marineland Penguin Bio-Wheel Power Filter is often compared to the Marineland Penguin 75 Power Filter, as they are both from the same company, with the bio-wheel technology for impressive biological filtration. However, the Bio-Wheel Power filter features double the gallons per hour and multistage filtration for maintaining a clean aquatic environment for your goldfish.

What makes it stand out?

  • 3-stage filtration
  • For tanks of different sizes
  • Easy installation
  • Beneficial bacteria

Which disadvantages must you keep in mind?

  • Some buyers note it may be noisy
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Features
  • Tank size: 40-120 gal
  • Filtration: 2-stage (biochemical, physical)
  • Flow rate: 132 GPH
  • Dimensions: 11.89 x 8.66 x 3.62 inches

More features: 4.93 ft power cord, adjustable flow rate, 8-12W power, 3 suction cups

Looking for a powerful filter to keep your tank clean? Look no further than the FREESEA Internal Aquarium Power Filter! This 2-stage filter is perfect for tanks between 40 and 120 gallons and can handle a flow rate of up to 132 GPH. Plus, it’s easy to adjust the flow rate to meet your needs. The FREESEA Internal Aquarium Power Filter also features 3 suction cups to keep it in place, as well as a 4.93 ft power cord.

Although the FREESEA Internal Aquarium Power Filter is top-quality like our Editor’s Choice, the Marineland Penguin Bio-Wheel Power Filter, it is quieter and works better in removing clog. It goes further in automatically removing fish poop, making it an ideal choice for goldfish parents who don’t have time to clean. The filter also generates active bubbles that keep your fish engaged and entertained.

What do we love it for?

  • Ultra-quiet operation
  • Suitable for fresh and saltwater
  • Adjustable flow rate
  • Easy to detach and clean
  • Increase of dissolved oxygen in the water
  • Energy-saving

What were we disappointed with?

  • The price is a little bit high
RELATED: 7 Best Filters for Betta Tanks – Keep Your Betta Healthy and Happy (Summer 2022)
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Features
  • Tank size: up to 3 gal
  • Filtration: 2-stage (mechanical and chemical)
  • Flow rate: 25 GPH
  • Dimensions: 2.25 x 2.5 x 6.25 inches

More features: auto-start pump

Looking for a powerful and compact filter for your small aquarium? Look no further than the Aqueon QuietFlow E Internal Power Filter. The two-stage filtration process provides mechanical and chemical filtration to keep your tank clean and clear of debris. The filter can handle up to 3 gallons of water and features a 25 GPH flow rate. Plus, it’s super easy to set up – just plug it in and you’re ready to go!

The Aqueon AT10 is another submersible filter like the Aqueon QuietFlow, as they both feature self-priming and require filter replacement within 30 days. But, the QuietFlow is an ideal choice for those who’d prefer a smaller tank with easy cleaning, as it comes with easy-to-install suction cups and hanging clips for maintenance. The QuietFlow will also come on automatically if the power is interrupted.

What stands out?

  • Affordable price
  • Easy to install with suction cups or hanging clips
  • Auto-start pump
  • One cartridge lasts up to 4 weeks
  • Requires no priming
  • Protective intake grid

What cons did we manage to find?

  • Some buyers note that the suction may be too strong
RELATED: 7 Best Filters for Betta Tanks – Keep Your Betta Healthy and Happy (Summer 2022)
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Features
  • Tank size: 5-20 gal/10-30 gal/20-50 gal/40-70 gal/60-110 gal
  • Filtration: 3-stage (mechanical, chemical, biological)
  • Flow rate: 100 GPH/150 GPH/200 GPH/300 GPH/500 GPH
  • Dimensions: 4 x 9 x 8 inches

More features: AquaClear foam, activated carbon filter, BioMax, cycle guard

The AquaClear Fish Tank Filter is the ideal filter for your fish tank. This 3-stage filtration system, with mechanical, chemical, and biological filtration, provides superior water quality for your fish. It features an adjustable water flow that allows you to control how much water passes through the filter. The filter comes in five sizes which means it can fit any tank size – 5-20 gal, 10-30 gal, 20-50 gal, 40-70 gal, and 60-110 gal.

The AquaClear Fish Tank Filter is best compared to the FREESEA Internal Aquarium Power Filter, as they both feature mechanical, biological, and chemical filtration. They are also easy to use and clean. But, the AquaClear Fish Tank Filter has a much larger filtration volume, providing up to seven times better than the standard fish tank. It will work great for those who have more fish in their tank.

What stands out?

  • Energy-saving
  • Easy to set up and clean
  • 3-stage filtration
  • Big filtration volume
  • Adjustable water flow
  • Waterfall design
  • You can use any kind of media for the filter
  • It can hold a lot of media

What cons did we manage to find?

  • Some buyers note that the filter is loud
RELATED: 10 Best Hang-On-Back Filters for the Most Aesthetically Pleasing Setup (Summer 2022)
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Features
  • Tank size: 10-50 gal
  • Filtration: 3-stage (mechanical, chemical, biological)
  • Flow rate: 200 GPH/132 GPH/320 GPH
  • Dimensions: 9.7 x 3.3 x 2 inches

More features: 5.25 ft cord, 2 nozzles, 180-days warranty, adjustable flow rate

The No.17 Submersible Aquarium Internal Filter is a 3-stage filtration device that can be used in aquariums for up to 50 gallons and features 3 flow rates. The filter combines mechanical, chemical, and biological processes to remove debris, toxins, and waste from your tank’s water. With dimensions of 9.7 x 3.3 x 2 inches, it’s also compact and easy to install. Plus, it comes with a 5.25 ft cord and 2 nozzles for adjustable flow rates.

The No. 17 Submersible Aquarium Internal Filter offers quiet and easy installation and an adjustable flow rate like the AquaClear Fish Tank Filter. However, the No. 17 filter is easier to clean, as it comes with two nozzles to make your aquarium clean and fresh. It also features multiple filtration media for a cleaner environment.

What are its best features?

  • Supply of oxygen
  • Adjustable flow rate
  • 180-days warranty
  • Good suction power
  • Durable and compact
  • Quiet operation
  • Easy to maintain
  • Convenient design

What could be improved?

  • A small area for beneficial bacteria to grow
RELATED: 7 Best Internal Aquarium Filters – Safe and Efficient (Summer 2022)
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Features
  • Tank size: up to 40 gal
  • Filtration: 2-stage (mechanical, biological)
  • Flow rate: not specified
  • Dimensions: 11.34 x 3.86 x 2.24 inches

More features: 2 suctions, 2 bags of ceramic media balls, and 2 sponges in the pack, 360° adjustable water outlet

Looking for a reliable sponge filter? UPETTOOLS has you covered with their 2-stage biochemical sponge filter. It uses a sponge and ceramic media balls to remove solid waste from the aquarium water. Suitable for tanks up to 40 gallons, this filter is perfect for keeping your goldfish healthy and happy. With a powerful flow rate, this filter will keep your tank clean and fresh in no time! Plus, it’s easy to install – just attach it to the tank and you’re good to go!

The UPETTOOLS Aquarium Biochemical Sponge Filter is designed with sponges for filtration. In comparison with other products from our list, the UPETTOOLS filter has a more unique design, with 360-degrees rotation without dead ends. If you have baby fish, the UPETTOOLS is also an ideal choice, as it protects them from getting sucked into the filter while getting rid of waste.

What makes it special?

  • The source of dissolved oxygen
  • 360° adjustable water outlet
  • The pack includes additional accessories
  • The filter box can be filled with any kind of media
  • Very easy to maintain
  • Safe for fish

What cons did we find?

  • Not for big tanks
RELATED: 7 Best Filters for Betta Tanks – Keep Your Betta Healthy and Happy (Summer 2022)
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7
Best Safe Filter

DaToo Aquarium Power Filter

Features
  • Tank size: 1-10 gal
  • Filtration: not specified
  • Flow rate: 52 GPH
  • Dimensions: 7 x 4 x 2.5 inches

More features: BPA-free material, 3W power, 1-year warranty, filter cartridge cotton with activated carbon

Looking for an aquarium filter that’s compact, easy to use, and won’t break the bank? Look no further than the DaToo Aquarium Power Filter! This little powerhouse can handle tanks up to 10 gallons and has a flow rate of 52 GPH. The activated carbon cartridge removes odors and impurities from the water, keeping your fish comfortable and happy. It’s also made of BPA-free material and comes with a 1-year warranty.

The DaToo Aquarium Power Filter has a similar design to the No. 17 Submersible Aquarium Internal Filter. But, it stands out with its energy-saving and fish-friendly design. The filter is made with BPA-free plastic that does not produce toxins and is safe for your goldfish. As it works, it also saves energy with its efficient design.

Why did it make our list?

  • Large filter space
  • Ultra-quiet
  • Energy-saving
  • BPA-free material
  • Mounting with an adjustable hook or 4 suction cups
  • Waterfall design
  • It can be used with different kinds of media
  • 1-year warranty

What is not ideal about it?

  • Not for big tanks
RELATED: 8 Quietest Aquarium Filters: Silent yet Effective! (Summer 2022)
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9.2
Features
  • Tank size: not specified
  • Filtration: 3-stage (mechanical, chemical, biological)
  • Flow rate: not specified
  • Dimensions: 3.15 x 3.15 x 3.15 inch

More features: ABS plastic

Looking for a quality mini aquarium filter without spending a fortune? Look no further than the Bestgle Aquarium Mini Filter. It is perfect for small tanks, or as a secondary filter. This 3-stage filter can handle both mechanical, chemical, and biological filtration. The mechanical filter removes debris, the chemical filter removes odors, and the biological filter converts ammonia into nitrogen gas. It is made of ABS plastic for durability, and it’s very affordable.

The Bestgle Aquarium Mini Filter can be seen as the smaller version of the DaToo Aquarium Power Filter, ideal for those who have a smaller tank for their goldfish. It is easy to clean and features a triple filtration system consisting of cotton filters, a quartz sand, and activated carbon.

What do we love it for?

  • Low cost
  • Water oxygenation
  • Attractive appearance
  • 3-stage filtration
  • Easy to clean

What were we disappointed with?

  • Air pump and air tube are not included

Things to Consider

Clean water is a key factor in maintaining a healthy goldfish environment. Choosing a filter for goldfish can be a difficult task as there are many factors to consider. However, by taking the time to choose the right filter for your goldfish, you can provide a healthy environment for your fish and improve the water quality in your tank.

Why Goldfish Need a Filter

8 Best Filters for Goldfish – Pure Water for Healthy and Happy Pets (Summer 2022)

A filter should be the first piece of equipment you purchase when setting up a goldfish tank. It is an essential part of maintaining a healthy environment for your fish.

While goldfish are not as messy as some other fish, they still produce a fair amount of waste. This waste can build up over time, make the water quality in your tank decrease, and become stagnant and dirty. This can make their environment less pleasant and lead to health problems for your goldfish.

A filter cleans the water by removing waste and debris and helps to keep the water fresh and pleasant for fish. Pure water affects the health and growth of fish, so it is important to maintain good water quality.

Filters provide water circulation, which is also important for goldfish. This is especially important in larger tanks where there is a greater chance of stagnant water.

A filter is also important for aeration. Goldfish need oxygen in order to breathe, and a filter can help to provide this oxygen.

One more benefit of using a filter is that it can provide a place for your goldfish to hide. Goldfish are timid fish and like to have places to hide.

As you can see, a filter is a necessary tool for a goldfish tank. It is important to choose the right filter for your tank and to maintain it properly. By doing so, you will provide a clean and healthy environment for your goldfish to thrive.

Filtration Methods

There are three main methods of filtration: mechanical, biological, and chemical.

Mechanical filtration is the process of removing solid waste from the water. This is usually done with a filter media such as a sponge or pad.

Biological filtration is the process of removing ammonia and nitrites from the water. This is done with bacteria that convert these waste products into harmless nitrates.

Chemical filtration is the process of removing dissolved waste from the water. This is usually done with activated carbon or chemical resin.

Types of Filters

8 Best Filters for Goldfish – Pure Water for Healthy and Happy Pets (Summer 2022)

The type of filter affects both the function and the price.

There are three main types of filters: canister filters, hang-on-back filters, and undergravel filters.

Canister Filters

Canister filters are powerful filters that can be used on larger tanks. They are typically more expensive than other types of filters but are very effective at filtering water. The best canister filters have a pump that pulls water through the filter media and then returns it to the tank.

Hang-on-back Filters

Hang-on-back filters are less powerful than canister filters but are still effective at filtering water. They are typically less expensive and easier to set up than canister filters. The best hang-on-back filters hang on the back of the tank and have a pump that pulls water through the filter media and then returns it to the tank.

Undergravel Filters

Undergravel filters are placed under the gravel at the bottom of the tank. They have a pump that pulls water through the gravel and up through the filter media. The water then flows back down through the gravel and returns to the tank. Undergravel filters are typically less expensive than other types of filters but are not as effective at filtering water.

Important Features

There are several factors to consider when choosing the best filter for goldfish. The size of your tank is important, as a larger tank will need a more powerful filter. The filter media you choose should be able to accommodate the amount of waste your goldfish produce. The flow rate is another important factor, as a higher flow rate will ensure that the water is filtered properly.

Tank size

Tank size is an important consideration when choosing a filter. Tanks can be as small as the best 5-gallon fish tanks or as large as hundreds of gallons.

Filters are rated for certain tank sizes and you should choose a filter that is appropriate for the size of your tank.

If you have a larger tank, you will need a more powerful filter as it will have to filter more water. If you are looking for a good tank for your goldfish, the best 20-gallon fish tanks can be an excellent option for you.

Filter media

The type of the best filter media you use will depend on the type of filtration you want to achieve. Mechanical filtration is usually done with a sponge or pad. Biological filtration is usually done with bacteria that convert ammonia and nitrites into harmless nitrates. Chemical filtration is usually done with activated carbon or a chemical resin.

Flow rate

The flow rate is the number of gallons per hour that the filter can move. A higher flow rate is better because it means that the water in your tank will be filtered more quickly and more effectively.

FAQ

If you don’t use a filter, you will need to do more water changes to keep the water clean. This can be difficult to do and it is not recommended.

It is typically recommended that you change the filter media every 4-6 weeks. This will help to keep the water clean and prevent the build-up of harmful waste products.

The best type of filter for goldfish is a canister filter because it is powerful and can be used on larger tanks. Canister filters have a pump that pulls water through the filter media and then returns it to the tank. They are typically more expensive than other types of filters but are worth the investment.

Goldfish are very adaptable and can live in a variety of different environments. They prefer water that is cooler than most other fish. Goldfish also like to have plenty of space to swim and hide, so they should be kept in tanks that are at least 20 gallons. They are not very active fish and don’t need a lot of plants or other decorations in their tank.

Our Verdict

The Marineland Penguin Bio-Wheel Power Filter is a high-quality aquarium filter with a three-stage filtration that will keep your fish tank clean and healthy. It is easy to install and use, with a rotating bio-wheel that provides superior biological filtration for crystal clear water. You can be sure that the water in your aquarium is cleaner than ever before with the best filter for goldfish from Marineland!

FREESEA Internal Aquarium Power Filter is a two-stage filter that can handle tanks up to 120 gallons and features a 132 GPH flow rate. It also has an adjustable flow rate, so you can customize it to your needs.

Aqueon QuietFlow E Internal Power Filter is a compact and reliable filter. With 2-stage filtration, it is perfect for tanks up to 3 gallons. The filter features a flow rate of 25 GPH. The included auto-start pump makes set-up a breeze, and the small dimensions make it perfect for small-size aquariums.

References

1.
How to Take Care of a Goldfish | PetMD
Did you know that goldfish require a lot more than just a bowl and some food? Find out what it takes to care for a goldfish properly in order to keep them healthy and thriving.
2.
Aquarium Components: Filtration - Florida Department of Agriculture & Consumer Services
Filtration is a very important aspect of an aquarium system. Filtration is comprised of three main components: mechanical, chemical and biological. Sterilization using ultraviolet (UV) or ozone systems can also be added.
3.
How to Take Care of Your Fish (Tanks) - wikiHow Pet
Fish come in all different shapes and sizes, making them some of the coolest pets to own. Fortunately, fish are pretty easy to take care of as long as you choose fish that go well together and put them in a big enough tank.
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