Product Reviews, Aquarium Filters

Best Filter for Betta Fish

Find out the best filter for Betta to keep your Betta healthy and happy.

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best filter for betta fish

If you’re a Betta fish enthusiast, then you know that keeping your Betta healthy is of utmost importance. Part of this responsibility includes providing your Betta with a clean and healthy environment.

One way to do this is by installing a filter for Betta tank. In this buying guide, we will discuss the best filter for Betta fish and provide you with all the information you need to make an informed purchase. So, whether you’re looking for a top-of-the-line filter or something more affordable, we’ve got you covered!

  1. Best Overall: Fluval 206 External Filter
  2. Best for Small Tanks: Tetra Whisper Internal Filter
  3. Best Budget: Aqueon QuietFlow E Small Internal Filter
  4. Best Sponge: hygger Sponge Filter
  5. Best HOB: AquaClear HOB Power Filter
  6. Best Undergravel: Lee’s 40/55 Premium Undergravel Filter
  7. Best for Large Tanks: Penn-Plax Cascade

Best Filter for Betta Reviewed

The lineup below includes a low flow filter for Betta as well as our choice for the best filter for a Betta. Our aquarium filter lists include flow adjustment models with a good filtration system, easy to use sponge filter for Betta, and a gentle filter for Betta fish that are suitable for any tank size.

From the best overall to best budget, you’ll find all you’re looking for, with all the right details, in a simple to understand manner.

Best Overall
best filter for betta Fluval 207
Photo: Amazon.com

The Fluval 206 as the name suggests is a product from the 06 Fluval lineups, which are evaluated to be the highest performing multi-stage canister filters ever built. This square-shaped canister filter is capable of containing up to 50% more water than round designs of the same size, and it is perfect for up to 45 gal/200 L aquariums.

It also has an adjustable flow rate, so you can customize the flow to meet your Betta’s needs. This filter is very easy to clean and comes with everything you need to get started.

An important improvement that this series has brought about, is lowering the frequency of maintenance requirements, by improving motor performance, increasing flow rate and head pressure. It is just as important to note that, by redesigning the priming system, Fluval has made it much easier for users to get this filter up and going.

Product Specs

  • Type: Canister filter
  • Aquarium capacity: up to 45 gallons (available in different models)
  • Free media included: BioMax, water polishing pads, bio-foam, carbon

Pros

  • Quiet Operation
  • Water flow adjustment
  • Large media capacity
  • Easy cleaning and maintenance

Cons

  • A bit pricy

Read more: Fluval 207 Review

Best for Small Tanks
The Best Filter for Betta: Tetra Whisper Internal Filter
Photo: Amazon.com

This filter is the best small filter for Betta tanks. The Tetra Whisper Internal Filter is a small and compact filter that does an amazing job at filtering water. However small may seem, is never short of amazing features and high quality.

This internal aquarium filter incorporates mechanical, chemical, and biological filtration all in one super quiet and convenient unit, which is available for purchase paired with different sizes of bio bag cartridges: small for 5-10 gallons and medium for 10-30 and 20-40 gallons.

The featured bio bag doesn’t lack great features itself: it is a double-sided mesh bag that catches waste and debris while also removing unpleasant smells and discoloration by using activated carbon.

The packet includes only Bio-Bag media. To have more suitable filtration for your Betta you can purchase the Tetra Bio-Bag Large Disposable and Tetra Whisper Bio-Bags filter cartridges.

Product Spec

  • Type: Undergravel filter
  • Aquarium capacity: up to 5-10 gallons (available in different models)
  • Free media included: Bio-Bag

Pros

  • Small Betta filter
  • Dual-sided Bio-Bag mesh
  • Compact size
  • Super quiet process
  • Bio bag featured
  • Waterfall design

Cons

  • No adjustments for flow

Get it on Amazon, or at Chewy

Best Budget
The Best Filter for Betta: Aqueon QuietFlow E Small Internal Filter
Photo: Amazon.com

Aqueon QuietFlow E Small Internal Filter is the best internal aquarium filter for Betta fish. It’s an internal aquarium filter that is easy to install and maintain, and it’s very affordable. This filter comes with a soft flow that meets your Betta’s needs.

It also has a self-priming feature that makes it easy to get started, and the filters are easy to clean and replace. The most distinctive feature of this filter is its led light indicator, which lights up when the unit becomes too clogged with debris, signifying that it is time for a cleanup. 

With five different stages, the filter ensures in its every step that your water stays clean, clear, and healthy for your Bettas. The Aqueon Quietflow is a great choice for anyone on a budget who is looking for a good quality Betta filter.

Product Specs

  • Type: Internal filter
  • Aquarium capacity: 20 gallons (available in different models)
  • Free media included: Coarse media sponge, bioholster, carbon

Pros

  • LED light indicated when cleaning is necessary
  • 5 stages of filtration keep water clean and clear
  • Internal pump minimizes noise
  • Affordable

Cons

  • Might use up slightly more electricity

Get it on Amazon, or at Chewy

Best Sponge
The Best Filter for Betta: hygger Aquarium Double Sponge Filter
Photo: Amazon.com

Sponge filters are the best filter types for Bettas and hygger Sponge Filter is the best Betta sponge filter. It combines oxygenation, biofiltration, and physical filtration, all in one unit to produce the most efficient filtration process possible. The filter itself utilizes an air pump as the main power source and the sponge is capable of capturing fine particles floating in the water.

The two sponges are easily detachable and cleanable, although we do need to highlight the importance of using aquarium water to rinse the sponges, as opposed to using clean, bacteria-free water.

The package comes with included ceramic media balls, which only need to be replaced every 6 months ideally, and can also be swapped for any other type of media you might find more preferable like carbon or ammonia absorbers.

Product Specs

  • Type: Sponge filter
  • Aquarium capacity: 10 gallons (available in different models)
  • Free media included: Ceramic media balls

Pros

  • Two-sponge design
  • Detachable sponges
  • Energy saving and silent
  • Ideal flow for Bettas

Cons

  • Looks bad in a display tank

Get in on Amazon or at Petnannystore (use code ‘Petnanny’ for a 15% discount)

Best HOB
The Best Filter for Betta: AquaClear HOB Filter
Photo: Amazon.com

From versatility to simplicity and uncompromised efficiency, this product is very promising. The AquaClear Filter it’s a hang-on-back filter that is easy to install and maintain. This filter comes with a three-stage filtration system that includes mechanical, chemical, and biological filtration.

Another important feature of this filter is how spacious its bio-media is; it is attached to the body of the filter and you can fill it with your preferred filtering media however you see fit and it allows room for improvisations.

Product Specs

  • Type: HOB filter
  • Aquarium capacity: 10 gallons (available in different models)
  • Free media included: Poly/Foam, BioMAX, Activated charcoal

Pros

  • Create gentle waterfall design ideal for Bettas
  • Large media capacity
  • Adjustable flow rate

Cons

  • Might become a little noisy which is fixable

Read More: AquaClear Filter Review

Get in on Amazon, or at Chewy

Best Undergravel
The Best Filter for Betta: Lee’s 40/55 Premium Undergravel Filter
Photo: Amazon.com

Undergravel filters are not a very popular option nowadays, but they’re still a good choice if you’re looking for an efficient and easy-to-maintain filter for Betta. Lee’s 40/55 Premium Undergravel Filter is one of the best undergravel filters on the market.

This filter is designed for aquariums up to 55 gallons and it offers great filtration. The flow created from this filter is gentle and won’t stress out your Betta fish. The black color makes this filter easy to hide among your substrate. We prefer to use this filter along with a power water filter to have good water clarity. Keep in mind that this product comes in two plate pieces. 

Product Specs

  • Type: Undergravel filter
  • Aquarium capacity: up to 55 gallons
  • Free media included: No

Pros

  • Multi-level plate design
  • An airstone and lift tube come in the box
  • Durable

Cons

  • Un-adjustable lift tubes

Best for Large Tanks
The Best Filter for Betta: Penn-Plax Cascade
Photo: Amazon.com

The Penn-Plax Cascade Filter is a great filter for large tanks. This filter has a four-stage filtration system that includes mechanical, chemical, and biological filtration and is a budget-friendly alternative with the best performance for the price.

The patented technology incorporated into this unit requires very little electricity and will ensure very uncomplicated usability. This filter is suitable for both marine and freshwater aquariums and it also combines several types of filtering media to produce the highest quality mechanical, chemical, and biological filtration all in one unit.

You can use more media with this filter, including Bio-Floss, Bio-Sponges, activated carbon, and any combination you’d like. With a push-button primer, two 360-degree rotating taps, and an 8-foot power cord, this filter has everything you need to get started.

Product Spec

  • Type: External filter
  • Aquarium capacity: 30 gallons (available in different models)
  • Free media included: 3x poly-fiber floss pads, coarse bio-sponge, activated carbon

Pros

  • Great value for money
  • Energy efficient
  • Powerful and quiet
  • Push-button primer for fast startup

Cons

  • Pricey

Read More: Penn Plax Cascade Review

Get in on Amazon, or at Chewy

Benefits of Having a Good Betta Fish Filter

Betta fish need a filter without a doubt. You must have a good filter to ensure the water quality in your Betta tank. There are several other benefits of having a good filter for your Betta fish tank. A quality filter will:

  • Consistently circulate and filter the water in your Betta tank.
  • Help to remove harmful toxins and bacteria from the water.
  • Keep the water temperature stable.
  • Provide your Betta with a consistent source of oxygen.
  • Reduce stress levels in your Betta fish.

Yes, it is possible to care for a Betta fish without a filter, but it is much harder to do so. If you do not have a filter, you will need to do more water changes to maintain water quality. This can be stressful for your Betta fish and may even lead to illness.

Best Sponge Filter for Bettas

Types of Betta Fish Filters

There are a few different types of filters that you can choose from and each has its own set of pros and cons.

  • Sponge filters are great because they provide mechanical filtration (removing debris and waste) as well as biological filtration (removing ammonia and nitrites). They’re also very affordable and easy to maintain. However, they’re not the most powerful type of filter and may need to be replaced more often than other types.
  • Hang-on-back filters are one of the most popular types of filters on the market. They’re easy to install and can be used in both small and large tanks. HOB filters also offer a wide range of features, making them a good choice for those who want a lot of control over their filtration system. However, HOB filters can be noisy and may not be the best choice for those who want a peaceful environment.
  • Undergravel filters are another popular type of filter and they’re often used in Betta tanks. They’re easy to install and offer excellent biological filtration. However, they can be difficult to clean and maintain, and they may not be powerful enough for larger tanks.
  • Internal filters are a good choice for small tanks because they’re compact and don’t take up a lot of space. They’re also relatively quiet and offer good filtration capabilities. However, internal filters can be difficult to clean and may not be strong enough for large tanks.

What to Look for When Buying a Betta Filter

Now that we’ve gone over the benefits of having a filter for your Betta fish tank, let’s discuss what you should look for when buying one.

Bettas are a very sensitive species and picky regarding their environment. That makes their caretakers think hard when choosing a good filter for Betta fish. Now the obvious question is, how can we tell if a Betta fish tank filter option is good or great?

Here are the main factors you should consider when choosing the best filter for Betta fish:

Adjustable Flow Rate

One of the most important things to consider when choosing a filter for your Betta fish is the flow power. Bettas are slow-moving fish and do not like strong currents.

The ideal flow rate for a Betta fish is between 0-50 gallons per hour (GPH). Anything more than that and your Betta may become stressed out. That’s why it’s important to find a filter with an adjustable flow rate. This way, you can customize the flow rate to meet your Betta’s needs.

Lack of flow rate adjustment will really have you in a sticky situation since you may have spent a bunch of cash for a filter that your Bettas just don’t thrive with.

best 10 gallon fish tank for bettas

Tank Size

Another important factor to consider when choosing a Betta tank filter is tank size. You need to make sure that the filter you choose is appropriate for the size of your Betta tank.

If you have a small Betta tank (less than five gallons), then you’ll want to choose a small filter. A big filter will be too much for a nano aquarium and will likely cause your Betta fish stress.

On the other hand, if you have a large Beta tank (greater than 20 gallons), then you’ll want to choose a large filter. A small filter won’t be enough to properly circulate and filtrate the water in a large tank.

Noise Level

Getting beautiful Betta fish is inarguably a very relaxing experience. If you have chosen to place your Betta aquarium in a relaxation area in your home or office then the filter noise should not disrupt that relaxation.

Some filters are very loud and can be quite disruptive, so it’s important to find a filter that runs quietly. When choosing the best filter for Betta fish we made sure to include only the quietest aquarium filters available that still provided adequate filtration for Betta fish tanks.

Ease of Maintenance

Another factor you’ll want to consider when choosing a Betta fish filter is the ease of maintenance. Bettas are sensitive fish and even the slightest change in water quality can cause them stress.

That’s why it’s important to find a filter that is easy to clean and doesn’t require too much maintenance. The last thing you want is a filter that is so difficult to clean that you end up not cleaning it as often as you should.

Price

Of course, price is always a factor when choosing any product and Bettas are not the most expensive fish to care for, but they’re not the cheapest either. The good news is that there are many high-quality Betta fish filters available at very reasonable prices.

That’s why it’s important to find a filter that is reasonably priced and fits within your budget. You don’t want to spend too much money on a filter that isn’t going to do a good job of filtering your Betta’s water.

Our Verdict

After carefully considering all the factors, we’ve come to the conclusion that the Fluval 206 External Filter is the best filter for Betta fish tanks. This filter is quiet, powerful, and easy to use. It also comes with a free media kit that includes everything you need to get started.

If you are looking for a budget-friendly or the best filter for 10 gallon Betta tank, we recommend the Tetra Whisper Internal Filter. This filter is small and compact, but it does an amazing job at filtering water. It also comes with a free bio bag that is double-sided and catches waste and debris while also removing unpleasant smells and discoloration.

How We Chose the Best Filter for Betta

When choosing the best filter for Betta fish tanks, we considered a number of factors, including price, type, aquarium capacity, and features. We also looked at the pros and cons of each filter to help you make an informed decision.

We also purchased and reviewed these filters to offer the most trustworthy information possible. Based on our research and experience, we’ve compiled a list of the best filter for Betta fish tanks that are sure to meet your needs.

FAQs

Properly maintaining clean aquarium water is key to thriving your Betta. Ahead, learn how to do so, which type of filter is ideal for this fish, and whether or not you should turn your betta filter off at night.

Q: What type of filter is best for a Betta?

The best type of filter for a Betta is an external canister filter. These types of filters have adjustable flow rate settings, which is important because Bettas are slow-moving fish and they can be easily overwhelmed by a strong current.

Canister filters also have larger media baskets, which means they can hold more filter media and provide better filtration. One of the best choices for an external canister filter is the Fluval 206 External Filter.

Q: Is filter good for Betta?

Yes, filters are good for Betta fish because they help to keep the water clean and free of debris and waste. A properly functioning filter will also remove harmful toxins from the water, which is important for maintaining a healthy environment for your Betta. That’s why Betta fish needs a filter.

Q: Are sponge filters better for Bettas?

Sponge filters are a good option for Bettas because they provide mechanical and biological filtration. Sponge filters also have a very slow flow rate, which is ideal for Bettas. One of the best sponge filters for Bettas on the market is the hygger Sponge Filter.

Q: Can I turn my Betta filter off at night?

No, you should not turn your Betta filter off at night. Filters are an important part of maintaining a healthy environment for your Betta and turning the filter off will allow debris and waste to build up in the tank. If you need to do some maintenance on your filter, you can turn the flow rate down, but you should never turn the filter off completely.

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I am Mario, a expert aquarist who is sharing his knowledge with everyone.

Keeping innocent fish and aquatic plants safe and healthy is my daily routine. With my experience and my passion for aquatic life, I will advise you through the long run of keeping an aquarium.

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