Searching for Best Filter for Betta Fish? Then you are at right place

Usually, betta fish are found in a bowl. They can easily survive in the bowl but cause extra work for the keeper. The owner needs to take a lot of care of the betta fish. The bowl’s water should be changed every week, and overeating should be avoided.

If you are a busy person and cannot afford to spend so much time, you should use a fish tank to keep your betta fish. By fitting a filter in these tanks, you will be able to benefit from its features. Different filters come with various filters, and only after close examination, will you be able to pick the right filter for your use. Not to worry, though, because we have jotted a list for you that will make things easier.   

If you are looking for a good filter for your betta fish tanks, the following list will help you in choosing just the right filter. They have received several positive reviews and so are reliable for the job. If you are unable to choose even after reading this list, you will find our personal favourite at the end of this article. Whisper In-Tank Filter with BioScrubber for aquariums is the top running product in my review because of its price and quality.


1Whisper In-Tank Filter with BioScrubber4.2Amazon Check Price
2Penn Plax Cascade Hang-on Aquarium Filter4.3Amazon Check Price
3AZOO Mignon Filter 603.8Amazon Check Price
4Hygger Quiet Aquarium Filter3.8Amazon Check Price
5Aqueon Quietflow Internal Power Filter3.8Amazon Check Price
6Deep Blue Professional ADB88700 Biomaxx Nano Filter3.7Amazon Check Price
7Marina Power Filter4.2Amazon Check Price

1. Whisper In-Tank Filter with BioScrubber for aquariums

The Whisper In-Tank Filter with BioScrubber for aquariums has a three-stage filtration system. It makes sure that every dirt and toxic particle is removed from the water. Each stage is essential in the cleaning of water. The first stage involves a dense mesh that catches all the large particles of dirt and debris. The second stage includes an activated carbon filter. This carbon filter is essential in absorbing any forms of odors or decoloration. The final stage includes the Bio-foam that removes ammonia and nitrates from the water.  In addition to this, the Whisper In-Tank Filter with BioScrubber for aquariums is ideal for 3,4,10-gallons of fish tanks. These sizes are perfect for betta fish. 

Key Features

It has easy installation

People often worry about the installation of filters in their fish tanks. They often have to set aside an entire day to carry out this job. However, with Whisper In-Tank Filter with BioScrubber for aquariums, you will not have to worry about any such issues. All you need to do is either mount it inside the tank by using a hanger or two suction cups. You can be done with it in minutes.

It is very quiet

Your ears do not have to adapt to constant and irritating noise. Thanks to the fact that Whisper In-Tank is placed underwater, most of its noise is reduced. You can enjoy a peaceful moment with your betta fish without the noise of the filter in the background. The manufacturers of this product understand the need for a silent filter and fulfill this demand phenomenally. 


It can be dangerous

Users have reported that this product is quite dangerous for the betta fish. Some of these fish even lost their lives by getting stuck in the filter. Being given the job of making life better for the fish, and taking its life instead makes it a questionable item. This drawback makes this product’s reviews to be somewhat mixed as people cannot figure out if they are willing to take risk or not. However, if you are willing to take the risk, you will have to pay closer attention to the activity of your fish and make sure that it does not get caught by the filter.  

2. Penn Plax Cascade Hang-on Aquarium Filter With Quad Filtration System

For a tank with a capacity of over 7 gallons, the Penn Plax Cascade Hang-on Aquarium Filter With Quad Filtration System is quite perfect. It can cycle 20 gallons of water every hour, which is noteworthy. In addition to this, it contains a built-in leveling device that can be used to keep the filter in its correct position. Moreover, its intake tub is extendable, which means that you can pull it towards the bottom of the tank if you desire. It also contains an adjustable flow rate. You can adjust the flow rate depending on the circumstances. For example, while feeding your betta fish, having a low flow rate will be suitable. Your betta fish will be able to live comfortably in the fish tank in this manner. Apart from this, the Penn Plax uses replaceable filters that need replacement every 6-12 weeks, so you have to be cautious about that.    

Key Features

Its setup is easy

You do not have to watch multiple videos online or read articles about setting Penn Plax Cascade Filter up. This is because you can use this filter from the moment it leaves its box. It does not require any joining together of parts, which is ideal for most people. You should be able to set this product up in a minimal amount of time. 

It includes filters

As mentioned, Penn Plax filter requires replaceable filters after about 2-3 months. To allow the users not to face any troubles, it comes with a few replaceable filters too. You can use them in times of shortage in the market or some other issues. The manufacturers of this product ensure that the buyers do not go through any problems whatsoever. 


The filter media is not good

Penn Plax Cascade Filter comes with a filter media that helps in the cleaning of the fish tank. However, this filter media does not always carry out its job even in a reasonable manner. You often have to make your own media if you want any filtration to take place at all.

3. AZOO Mignon Filter 60

The AZOO Mignon Filter 60 is another fantastic choice for your betta filter. It comes with an adjustable flow rate, which can be controlled with a knob placed on top of it. Moreover, it does not need an external pump as it can without it just fine. In addition to this, it also comes with a prefilter, which makes it one of the best choices.

Key Features

Easy to clean

You do not have to worry about AZOO Mignon Filter 60 being a difficult filter to clean. You can clean it quite easily and in a minimal amount of time too. In case you are new to aquariums and filters, you would want to read the instructions correctly to clean the filter.

It makes no sound

If you are a busy person in need of comfort in their house, AZOO Mignon Filter 60 has got you. It will clean your water while staying quiet and making sure that the people around it do not get disturbed. You will love this product. 


Instructions are vague

Setting up a filter can be tricky, especially if you are new to them. To make these matters worse, the AZOO Mignon Filter 60 has quite vague instructions. You might have to rely on internet resources to understand how this product needs to be set up correctly. 

  • Easy to clean
  • It makes no sound
  • Instructions are vague

4. Hygger Quiet Aquarium Filter for 6-20 Gallon Turtle Shrimp 

The Hygger Quiet Aquarium Filter for 6-20 Gallon Turtle Shrimp Betta Tank, Adjustable Flow Submersible Fish Filter with Spray Bars is a partially submersible filter that has two stages of filtration. This is to ensure that the water is cleaned thoroughly without any problems. It can be placed both horizontally and vertically according to the liking of the owner. Moreover, it comes with two-section spray bars. 

Key Features

It is easy to clean

The Hygger Quiet Aquarium Filter for 6-20 Gallon Turtle Shrimp Betta Tank, Adjustable Flow Submersible Fish Filter with Spray Bars will not take up a lot of your time to get cleaned up. You will be able to finish this task in a little while only. You do not have to set aside several hours to get this product cleaned. 

It has brilliant suction power

Another notable thing about Hygger Quiet Aquarium Filter for 6-20 Gallon Turtle Shrimp Betta Tank, Adjustable Flow Submersible Fish Filter with Spray Bars is that its suction power is impeccable. People usually buy this product for its suction power alone, and they are not disappointed.


It produces heat

After a few weeks, you will notice that this product will start producing heat. This heat can be harmful to the fish and plants inside the tank. While the chances of the production of heat are less, you should still consider this drawback while making a purchase.

  • It is easy to clean
  • It has brilliant suction power

  • It produces heat

5. Aqueon Quietflow Internal Power Filter

If you own a 10-gallon fish tank, you should consider installing this particular filter. The Aqueon Quietflow Internal Power Filter is an internal filter that can be fitted both horizontally and vertically. If you have limited space, you can adjust the position of this filter upon your will. Not only this, but this filter also comes with some other adjustable items like flow rate and direction of the water.

In addition to this, it comes with a three-stage filtration system. These stages ensure proper cleaning of the water in the fish tank. The first stage consists of a dense foam that catches dirt and debris. The next stage includes activated charcoal. This charcoal removes decoloration, odor, and toxins. The third stage is the BioGrid that removes ammonia and nitrates from the water. 


It comes with a warranty

When you are buying a filter, you are usually planning to have a one-time investment. It is only fair since filters are somewhat expensive, and it is best if you choose the best one for the very first time. You will be delighted to know that Aqueon Quietflow Filters come with a lifetime warranty. This means that you will be able to rely on this product for a decent amount of time. Not only this but if you have any problems with the filter, you can always have your money back.   

Its flow rate is 57 gallons per hour

While it might be considered to be pretty slow, it is best for the betta fish. The betta fish prefer gentle flow rates instead of fast, as they can move smoothly in this water. Otherwise, they struggle to even eat in the water. The manufacturers of Aqueon Quietflow Filters have placed significant consideration for the wellbeing of the betta fish. 


It is heavy

Since it is heavy, people have difficulty placing it inside the fish tank. There are always the chances of this filter to fall. You will have to take care of it more by making sure that it sticks to its position. Otherwise, it can be harmful to not only the fish tank but also the betta fish.

6. Deep Blue Professional ADB88700 Biomaxx Nano Filter

The Deep Blue Professional ADB88700 Biomaxx Nano Filter for Aquarium is another great filter that you would want to have a look at. It is one of the most loved filters available in the market and is terrific for betta fish. It is ideal for small tanks up to the size of 5.5 gallons.

If you have kept betta fish for a while, you would know that they like a small fish tank as compared to a big one. Moreover, this filter also features an extensive tube. This tube allows you to take up water from the bottom of the tank. You can use it if you want to. In addition to this, it has a two-stage filtration system. The first stage includes a poly-fibre mechanical filter that catches large debris and waste. The harmful ammonia and nitrates are cleared up by the help of this filter too. 


It filters 16 gallons per hour

While 16 gallons seem like a small amount, Deep Blue Professional Filters are perfect for small-sized fish tanks. For your betta fish, it is best if you have a filter with a slow flow rate. The betta fish like to have a slow flow rate so that they can enjoy the comfort of the fish tank while being able to thrive in the clear water. 

It is quiet

One of the most necessary things to check before buying a filter is the sound produced by it. Very often, people regret buying a filter because it produces an unacceptable level of noise. This also disrupts the daily routine of the people around the fish tank. Therefore, it is suggested that you get yourself a filter that produces the lowest sound. The Deep Blue Professional ADB88700 Biomaxx Nano Filter for Aquarium gives you the opportunity to do this. You can carry on with your life without any problems whatsoever.

It has an attractive appearance

People buy fish tanks to make their living space look more appealing to themselves and to the people who visit. This purpose is often ruined with the installation of a filter. Most filters are too large for the fish tank, and so do not look good. However, Deep Blue Professional Filters is compact and simply designed. It allows it to look beautiful in any setting it is placed in.   


It does not sit properly

One of the biggest problems of this product is that it cannot stand on its position for a long time in a rimless fish tank. You will have to keep an eye out for the filter to make sure that it does not fall off. 

7. Marina Power Filter

This is a compact design that is perfect for up to 10 gallons of fish tanks. The Marina Power Filter contains a strainer sponge that stops the betta fish from being pulled in the filter. This is an extremely important feature as very often, the filter results in the death of the marine life in the fish tank.  Moreover, it has an adjustable flow. You can choose the right pressure of water, depending on the liking of your fish. Usually, the betta fish like tranquil water, so adjusting it accordingly will be the right decision. In addition to this, it comes with two different types of cartridges. These cartridges are called Bio-carb and Bio-Clear.  Both of them contain Ceramitek, which is an extremely porous ceramic filter. The Marina Power Filter provides a lot of space for biological filtration. Ultimately, your betta fish can live happily in the clear water.  


It is a quiet filter

Being quiet has its perks, and if you are used to buying filters, you will be familiar with them. From personal experience, we will suggest that you pick a filter that makes a minimal sound. Otherwise, you will regret buying a filter altogether. Especially if you are a busy person and are buying a fish tank to calm your mind down, you should consider getting s silent filter. To your good luck, Marina Power Filters make no noise. You can rely on it to provide you with a comfortable life. 

Its setup is easy

Installing a filter in a fish tank can be one of the most tricky and hectic things to do. However, if you pick a filter that can be easily set up, you will benefit a lot. Marina Power Filter allows you to save your time and energy by making the installation of it a piece of cake. You will also not require any expertise to carry out the job since you will be able to do it all on your own. Moreover, there will be no need to watch tutorial videos or reading articles about the installation of this filter. 

It is affordable

Usually, when people prefer bowls over proper fish tanks, they declare the inexpensive quality of bowls. It cannot be denied that bowls are indeed cheaper than fish tanks. However, fish tanks are far more efficient. If you add a filter to the tank, it will do all the cleaning for you. Not only this, but if you choose Marine Power Filter, you will also not put a burden on your pockets! That is correct. Not only does this filter do an impressive job at removing all the toxins, but it also treats your cash rightly. You will perhaps not get a better deal at such a low price. 

It is durable

One of the greatest things about this filter is that it is quite durable. If you are worried about spending even the smallest amount of money, you should know that you will not need to invest more anytime soon. It will stick with you at least for a couple of years. This factor makes it immensely popular amongst the fish tank enthusiasts. It also encourages people to shift from simple bowls to fish tanks.


Defective product may be delivered

While this product is impressive in carrying out its job, its delivery is not the most ideal. Many people have reported that they have received defective material in place of the perfect filter that they were hoping for. Sometimes, the product was found to be defective even after ordering twice. The company needs to take clear notice of this situation as it damages the buyers it attracts. 


So, there you have it. We hope that that the list, as mentioned above, will help you pick the right filter for your betta fish tank. You should do proper research without picking the correct filter for your fish tank. If you do not want to get in the hustle, we have made that easier for you. According to us, you should pick Whisper In-Tank Filter with BioScrubber. It is the perfect size filter that will be really good for your betta fish. If you are looking for a filter that fulfils all your wants and does not cost a fortune, you should give this particular filter a try. Not only will it do its job phenomenally, but it will also look great inside your fish tank. Its compact nature makes it lovable by the masses. 

You will not have to waste your time picking the best from the list provided above because we just did that for you. Best of luck with your fish keeping!  

How to Clean an Aquarium Filter ?

Mechanical filter

Firstly, scoop out some water from the tank and add it in a bowl. You will be using this water to clean the filter so that the fish do not have any adjustment issues. You should also unplug the filter so that you do not get current. Now, clean the sponge. To do this, wash the sponge until it does not start squeezing clear water out of it. Then, scrub the casing and tube. Use the remainder of water from the bowl and clean the parts of the filter. You can also take more water from the tank in case the filter is too dirty. Finally, place the parts back, and the filter will be able to function properly once again. 

Chemical filter

If you have a chemical filter, all you need to do is swap out the carbon regularly and your filter will remain clean. It would help if you did it once a week or whenever the water starts looking cloudy. 

Biological filter

Even though biological filters do not need cleaning up since the more bacteria, it has the better, but you can still clean it using your aquarium water. Just rinse the parts of the filter once, and it will be functioning correctly again. 


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