Betta fishes are friendly and they can literally make your day. However, they deserve a lot of care among which, installing the best filter for betta is one of the key things that you should do.
Whether you want to purchase a filter for the first time or simply wants to replace the old one, I believe this post will prove itself useful to you.
You don’t want your fish to swim in contaminated water, get diseased and then die eventually. Let’s face it, you are going to feed food to them which will be spread inside water, their droppings will be in the water.
In total, the water will become ammonic and its not a healthy thing for the fishes. Well, the solution is the best filters for betta which will purify the water inside the tank and keep fishes healthy and delightful.
Well, I have a lot to talk on this subject. So, let’s jump into it.
Before we go further, there are some questions you need to ask yourself or you probably might have in mind. Let’s see how many of these we can answer.
What is the Need of Best Filter for Betta?
Betta fishes need clean environment to thrive. It is installed outside the tank. Some of the reasons why betta will thank you for a filter are:
- Normally, you have to change water periodically in the tank by taking betta out. Well, the filter will help get rid of debris without having to remove the fish from the tank.
- Betta waste also help in removing the toxins that are built on the bottom because of the waste. This higher the level of ammonia and nitrates which is not at all good for betta. The best filter for betta helps in removing ammonia from the water.
- Pure water helps in making water breathable for betta. The filter will oxygenate the water and make it more breathable for the fishes.
How Do You Use the Best Filter for Betta?
The filter is installed outside the tank. It takes water from the tank and runs through it. This will help in oxygenating the water column for fish. The whole process is done before the fresh water is returned back into the tank.
A motor is used to push and pull the water through filter system. However, the water will surely create a lot of current while returning back into the tank.
How can you Slow Down the Currents?
There are a couple of ways you can use to control the current rate in the water. For instance, if you have a filter with adjustable flow rate then make sure to slow it down.
You can also lower the water intake of the tank. The other thing that you can do is to add more decorative pieces inside the water so that they can share current in the water.
How Often do you Need to Clean the Best Filters for Betta?
The size of the tank and number of fishes inside the determines the times you will need to clean the filter. However, on an average, you should change 20 – 40% water in a week.
As far as vacuuming the substrate is concerned, you might also want to do it on weekly bases. However, if you have less extract accumulated then you can clean it after two weeks as well. This will go according to your personal judgement.
Different Designs in Best Filters for Betta
You can find a variety of designs in the best filters for betta.
- Canister Filter Systems: It is more popular than others. In the working mechanism, the filter pump draws water in and out of the tank through the filter media. These are referred as external filters.
- Sponge Filter System: These filters are installed inside the tank and draws water through filter sponge. Some people consider these as airlift filters as these uses a hose to push and pull the water from the filter.
- HOB Filter System: These systems are also installed on the outside. The filter pump draws all the water using the filter mediums before the water returns in the tank. It is also named as power filter.
- Under Gravel Filter Systems: So, the last type is the under-gravel filters that are installed inside the tank. The filter is installed under the sand substrate.
The substrate is used as filter media which help in drawing water below the sand using the pipes and tubes and using the same medium, the water is returned back inside the tank. The system also uses air for circulating water.
These are some of the varieties in the best filters for betta.
How to Choose the Best Filter for Betta?
There are some of the main characteristics of the best filters for betta. Keep these in mind while purchasing the right product.
#1. Flow Tendency
As mentioned above, high flow causes current in the water. Therefore, it is essential to pick a product with low flow power. Otherwise, the currents might knock them down.
There are some ways to reduce the flow if you have a powerful filter without any flow control. While adjustable filters can prove themselves meaningful, you will still have to take some measures to lower the flow rate.
The best filter for betta should be such where limiting the water intake of the tank is super easy. You can also use a pair of pantyhose that can be cut and fit over the filter intake and slow down the water entering the filter.
It can be dispensed with a baffle which could be anything that can slow down the water from the filter outlet. There are some common baffles that you can use such as tank screens, or a kitchen sponge or a suction cup.
The flow rate is also dependant on the size of the betta tank. The filter should be able to cycle through the whole water at least 4 times in an hour.
#2. Filtration Stages
Technically, there are three stages of filtration like mechanical, biological, and chemical. I will tell about all these stages in detail.
Well, you can consider it to be the first step for filtration which helps in removing the floating particles in the water. In mechanical filtration process can be done using different media like filter floss, ceramic cylinders, and coarse sponges.
In this stage, beneficial bacteria are used to remove the organic matter from the water. It could include uneaten food or fish water from the tank water. The media used for the biological filtration can be bio-balls or porous ceramic cartridges. This is how the biological filtration is done.
Now, at last, you need to re-balance the water and eliminate the chemical impurities out of it. Everything you put in the water has chemical contribution in the water that makes it contaminated and chemically unbalanced.
This process is done using a chemical filter. Carbon is a common purifier used in the process. It has small life of not more than 30 days.
You are recommended to keep these point in mind while find a suitable model.
15 Best Filters for Betta – Reviews
So, here are my top recommendations on the best filters for betta.
#1. AZOO Aquarium Mignon Filter 60
Designed in a small profile, the AZOO aquarium mignon filter is an effective machine that does its job decently. You can find it as a great replacement to your old tank filter. This one is a compact tank.
You are worried about the currents in the water, well, don’t be. This one comes with an easily adjustable flow rate. You can either use full power or simply lower it down to lower the current.
It is a budget product. Yes, I wouldn’t say that you will not find anything better on the market because you can. There is a multitude of models available on the market that you can find. This one is an inexpensive counterpart.
And one more thing, this filter is suitable for smaller tanks with no more than 3.5 gallons of water capacity. Therefore, if you don’t have a small tank then avoid purchasing it.
- Suitable for small spaces
- Quiet operation
- Adjustable flow rate
- Not suitable for large tanks
#2. Zoo Med Nano 10 External Canister Filter
So, this product is one of the best filters for betta tanks. It comes in large filtering capacity of 10 gallons of water. Therefore, if you are searching for a model with large filtering capacity then this is your product.
It is created to be used with saltwater or freshwater aquariums. The operation is so simple that even a new aquarium holder can also use it without any problem.
The filter is compact in size and the space-saving design can be installed anywhere near the tank. It is quiet in operation and has anti-vibration brushings.
This product comes with 10 external canister filter, a spray bar system for aeration, bio-ceramic filtration media, carbon chemical filtration media, and a mechanical filter sponge.
- Large capacity
- Easy to use
- Easy to clean
- There is no flow control feature
#3. Penn Plax Premium Under Gravel Filter System
For the budget buyers that also have a medium sized tank, this is a highly considerable product. It is available in capacity of 20 gallons and on a very affordable price.
This one is suitable product for under gravel tank model. It is an effective model and work decently for the users. The water flow of this model is also decent enough not tremble the water too much and affect the fishes.
The water flow will also depend on the air pump you use with the filter. The design and construction of this model is reliable and solid.
The setting up of this model is pretty simple. However, replacing the existing one can be a problem. You are recommended to set it up after emptying the tank.
- Cost effective
- Need less maintenance
- Need to vacuum the subtract for debris removal
#4. AquaClear Power Filter
This is the most reliable filter that uses all the processes to purify the water. This one is effective and very convenient to use. The model goes through all the filtration processes, mechanical, biological, and chemical. This model also has refiltration system as water comes more in contact with the media. It makes the filtration more effective.
You can adjust the output of water according to how you want. The installation of the filter is very easy. The filtration volume of this model is 7 times larger than other filters.
Other good things about this product is that it comes with 2-year warranty that secures the purchase. This filter has the capacity of 20-gallons. This is a highly considerable product for purchase.
- Effective filtration
- Easy installation
- 7 times larger
- 2-year warranty
#5. Aqueon Quietflow Internal Power Filter
This particular model is available in multiple capacities. It is fully submersible in horizontal and vertical position. It is adjustable in direction and height. You get adjustable water flow to limit the currents.
It comes with three-stage filtration which is effective for the debris and particles. The action is done using dense foam. Then, carbon is used to remove toxins and odor is removed using BioGrid.
The cartridges used in the filter is Aqueon replacement filter ones. This model can pump 10 gallons of water. It comes with lifetime warranty.
- Very silent
- Adjustable flow
- Deep filtration
- Easy to install
- Difficult to change filter media
#6. Huijukon Sponge Filter
Sponge filters are also becoming more popular with the buyers. This one comes with extra biological filtration plus gives you scope to add bio media of your choice. These are noiseless and fits tank size of up to 60 gallons.
This one is suitable in removing the floating debris. It also has double 9-layer sponge design that give better filtration than many filters online.
The filter is very simple to setup and turn on the pump to clean the water. This is a great product overall.
- Amazing cleaning
- Simple installation
- 9-layer sponge design
- There is no suction
#7. MarineLand Penguin Filter
So, this one is another suitable choice that you can make on budget. The certified flow rate of this filter is 150 GPH and it is suitable for all kinds of aquariums that are up to 30-gallons in size. However, for this one, you will need to use the Rite-Size B filter cartridge.
The delivery of this filter is very easy. It uses three-stage mechanism including chemical, biological, and mechanical to filter the water.
It is one of the ready to use filter and you will not have to struggle in understanding the working mechanism.
- Great performance
- Easy to understand
- Easy to install
- Three-stage working mechanism
- Check that it doesn’t leak
#8. Deep Blue Professional ADB88700 Biomaxx Nano Filter for Aquarium
This is yet another hang-on style filter in a capacity of 16 gallons. This one is meant to attend small tanks with less fish in it. The water it can pump at a time is not more than 5.5 gallons which establishes that this is not a filter for large tanks.
It allows you to adjust the speed flow and you also get an optional intake extension tube in order to pull the water from tank’s bottom.
This model comes with 2-stage filtration among which the first one is poly-fiber or mechanical process. Its helps in catching large debris. The other process is biological. It is surely among the best filters for betta.
- Simple design
- Easy installation
- Effective cleaning
- Clean large batches of debris
#9. Whisper In-Tank Filter with BioScrubber for Aquariums
One of the biggest strengths of this product is that using it will not disturb the fishes as much as other filters do. You will not have to put your hand entirely inside the aquarium to clean or operate the filter. You can change the media from top of the device for quick and convenient operations.
Since this product uses cartridge system, you will be able to change the cartridge without making any mess. The noise caused by the system is also less.
The filter is available on a reasonable price. You can install the product with a hanger and suction cups as per required. It is a great product for purchase.
- Available in different sizes
- Reasonably priced
- Easy to operate
- Simple to change cartridges
- Takes a lot of space inside the tank
#10. Fluval External Filter 106
In short, this product is for the people that don’t mind spending a lot of money on the best filter for betta. This product is largely priced but on the bright side, it gives various essential features.
It works on multi-stage filtration system and comes in capacity of 25 gallons. The sound dampening technology keeps the noise to the minimum.
There is clog-proof intake strainer that will clean the water carefully. The product is built with Aquastop Valve, rim connector assemblies, and multiple filtration baskets.
- Deep filtration mechanism
- Easy to install
- Clog-proof strainer
- Very expensive
#11. OASE Indoor Aquatics Bioplus
This one is available in compact design and uses three-stage filtration process including mechanical, biological, and chemical.
It produces less noise and is installed inside the tank. This will not disturb betta with noise. Other features include a diffuser and adjustable water flow nozzle that helps in limiting currents in water. It also has mechanism for additional dissolved oxygen.
All the accessories that you will need to install the filter are included with the product.
- Adjustable water flow
- Suitably priced
- 3-stage filtration process
- Does not cause currents
- Changing media can be difficult
#12. Penn Plax Cascade Aquarium Filter
This model has high capacity of 100 gallons for very large tanks. It comes with 3 media baskets that operate on 265 GPH.
The flow valve can rotate 360 degrees to fit inside the narrow opening of tanks. You can use any combination of media of your choice.
The installation of the product can be a little troublesome as it is a large model. However, on the whole, this is a great product.
- Prevent bacterial growth
- Easy to rotate
- High capacity
- Strong performance
- Very large
- Difficult to install
#13. Aquapapa Multi-Layer Filter
This product provides biological and mechanical filtration. The installation is simple and it will provide aeration and filtration to the water.
The sponge is used to trap large waste particles. However, it is careful with the baby fishes. Then the porous ceramic material colonizes the impurities.
This product comes in a capacity of 50 gallons and the pack also include a sponge filter.
- Easy to operate
- Catches big to small impurities
- Decently priced
- The installation parts are not included
#14. Penn Plax Cascade Hang-on Aquarium Filter With Quad Filtration System
For some reason, I like the hang-on filters more than any other variety as it will give you the scope to not get your hands inside the tank and disturb the fish. Well, this is also one of the best filters for betta.
It is suitable for small capacity of tanks. The levelling device is attached to a tube which pushes and pull the water. The low flow rates make sure that there are no currents in the water.
Also, there is activated charcoal in the system to ensure that water is purified to perfection.
- Easy to use
- Simple installation
- Very affordable
- Meant for small aquariums
#15. Penn Plax Cfu55Ug Fltr For 5.5 Gallon Aquariums
So, the last model that I would like to recommend is from Penn Plax. It helps in minimizing the ammonia and nitrate level from the water which is very essential.
The product is for under-gravel use and very easy to install and operate. It is suitable for smaller tanks as the pump capacity is low.
The filter needs less maintenance and is one of the best filters for betta on my list. This is a superb and highly-recommended product.
- Very efficient
- Small price
- Great overall quality
- Not suitable for large tanks
Well, if you are searching for a straight-forward solution then I will recommend the Aqueon Quietflow Internal Power Filter as it is one of the leading products that you can rely on for efficient performance.
All the products are great in performance and suitable for differently sized aquariums. You can pick the one that suits your needs.