A small aquarium is a perfect start for beginners, or it can be an economical option for those on a tight budget, and can also be a wise choice for space owners. Strict storage. Therefore, a small aquarium is an indispensable product on the market.
However, cleaning up a small aquarium is equally complicated and it requires you to really put your mind into it. The best small aquarium filter is an indispensable and indispensable tool to help you clean your tank properly and always maintain it clean. And this is also the device that can make it difficult for many to choose the best one.
Currently on the market there are many different types of filters in terms of price and performance, which is why not everyone can easily choose the best filter for a small aquarium.
But don’t worry, we’ve put together a list of the best small aquarium filters 2021 and a buying guide. Based on this you can equip yourself with the most useful information and can make a wise decision.
- Top 5 Best small aquarium filter Review 2021
- What to consider when buying the best filter for small tanks?
Top 5 Best small aquarium filter Review 2021
#1 AquaClear Power Filter 110 V – [Best Rated]
If you are looking for an impressive filter at an affordable price, you should never miss this filter from AquaClear. This is a famous brand with quality products and prices suitable for the majority. And this product is extremely suitable for small aquariums from 5 to 20 gallons in size.
This best aquarium power filter has three basic filtration layers which are mechanical, chemical and biological. It provides a powerful filtration process for all the aquarium water. We can say the engine of this filter works very impressive, it has a speed of 100 gallons per hour, this is a number representing the amount of water in the tank passing through the filter.
For example, to understand this, for a 10-gallon aquarium, the entire amount of water in the tank will be passed through the filter 10 times in an hour. Therefore, it ensures that all water in the aquarium will be filtered thoroughly and cleanly. You will hardly be able to find a filter with good speed like this.
You can also adjust the flow rate of the filter to suit the fish and plants in the tank. And this adjustment will not affect the filtering quality of the filter as well as damage the fan blades.
It has a transparent appearance and is a HOB filter so it does not lose the aesthetics of the aquarium, but blends in with the tank surprisingly well. However, many people think that this filter is very difficult to clean and sometimes sand particles from the substrate will get trapped in the filter. But overall it is still a quality investment.
#2 Aqueon Quietflow E Internal Power Filter – [Best Budget]
If you are looking for a filter that fits your limited budget then never miss this Aqueon filter. This is a good budget option that you can search in the market. For just about $ 10, you can own a filter that works for your small aquarium.
It is very easy to install the filter and has a user-friendly, easy-to-use design. You do not need to struggle for hours to find ways to install and use it. This product is designed to minimize user effort and it does not require you to spend time maintaining it.
You can easily change the filter within seconds without having to move the entire filter. With just one replacement, the filter will be cleaned to ensure its filtration quality. Especially it does not make any noise when operating so that does not affect the residents in the tank. The small fish from there no longer feel scared and timid.
Besides, you also do not need to manipulate manually to fill the filter when starting to start it. This device will automatically operate without any impact from you. You also have a wide selection of filters to suit the size of your aquarium, from 3 gallons, 10 gallons, 20 gallons to 40-gallon tanks.
However, this product will take up quite a bit of space in your small aquarium and it also doesn’t seem to have much aesthetics. But with a limited budget, this is still a reasonable choice for you.
#3 Tetra Whisper Power Filter 10 Gallons – [Best Engine]
Tetra Whisper Power Filter – the name speaks for the superiority of this filter, and yes, the engine operates very smoothly and completely without noise. This filter works silently and the noise it produces is like a whisper. And this is a great choice for small spaces, easy to resonate with. It is also considered a 10 gallon best fish tank filter.
This filter has a user-friendly design and you can easily attach it to the edge of the aquarium. So for the inexperienced beginner with a hobby, this is a safe choice as it doesn’t require a complex setup.
This filter is recommended for tanks of 5 to 10 gallons, with these dimensions the filter will work best. It comes with a medium-sized Bio-Bag that works quite well and can be easily replaced in just a few seconds. Convenience and friendly design are one of the major pluses.
You should note that this filter works in silence as whispers only when the amount of water in the tank is filled, flooding the filter. If the amount of water is not enough, this filter will make noise to alert you. If this condition persists, the filter may burn, so you should pay regular attention to keep its life extended.
#4 Marina Power Filter – [Best Design]
The Marina Power Filter is the smallest specially designed tank filter on this list. This product is a combination of two designs: hang on back and in-tank so that beginners will probably feel this design has a quite fancy appearance. However, this is a design that helps optimize the filter storage space and gives the aquarium a neat look.
In particular, this filter has a very good ability of biological filtration, bacteria beneficial for the biological filtration process will be able to maximize their ability when the engine is located inside the tank. This filter also does not require you to clean it regularly and does not require large maintenance efforts.
You can also adjust the flow rate to match the types of fish and aquatic plants in the tank. A gentle flow will suit small fish, will not scare them and can swim freely in the tank.
This filter does not require you to primer it, it can start the filtering process automatically as soon as you start it. However, this filter may emit noise after a period of operation, but it is still a product with good specifications.
#5 Aqueon QuietFlow LED PRO Aquarium Power Filters – [Best Quality]
Unlike all of the above products, this filter of Aqueon shows a completely different quality and completely superior. It has 5 stages of filtration instead of the usual 3 stages and thus the water in the tank will be completely removed debris, dirt or waste. This is the best fish tank filter 20 gallons.
This best aquarium filter has a lot of power options and you can choose products for tanks under 20 gallons. In particular, it is equipped with a layer of biofilter so the waste and unpleasant odors will be removed most thoroughly. A speed of 100 gallons per hour will ensure that all the water in the aquarium will be cleaned in a short time.
You can also change the flow rate to avoid affecting the conductors in the tank. This filter also has an indicator to indicate that it is time to replace the cartridge, if it is not, you should regularly check this component to ensure it is in the best condition.
This filter can also be self-priming when you start it and the engine runs very smoothly, without causing unpleasant noises. However, it only maintains this condition if the water level in the tank is filled.
Many customers complain that some of their products are not working well after a period of use, and should have a decent investment so it should remain in the best state. However, this is a minority and the warranty policy of the manufacturer is quite good so this is still an investment worth considering.
What to consider when buying the best filter for small tanks?
For small aquariums under 20 gallons, it is not easy to find a filter, and it is more challenging to choose a best small aquarium filter.
For any aquarium, a filter is very important and for a small tank, it is even more important to clean the tank. The reason is that once a small aquarium is contaminated, it will be very quickly, the whole tank will become polluted, leading to the death of the tank inhabitants.
But don’t worry, we’ll give you a buying guide so you can find your own best filter for aquariums under 20 gallons (in case you don’t like the 5 products we have suggestions above).
Things you should consider before buying any filter are:
As mentioned above, a small aquarium will be very polluted quickly once there are any contaminants in the aquarium. So you need a filter that is strong enough and has enough power to do your job well.
You also should not choose filters that are too powerful for the small size of the tank. Large capacity will create a large flow rate, it will affect the small residents in the tank and above all, it will cause waste for you.
A reasonable capacity for the size of the aquarium is able to create a flow rate of 4 times the capacity (at least). You should calculate carefully to be able to choose a product with the most appropriate capacity. Never choose a product without careful calculations.
For any device, maintenance is needed to maintain the highest life expectancy and the best quality. And an aquarium filter is no exception. You should also build your own maintenance routine because the quality of filtration depends on your maintenance.
If you don’t have a lot of time to maintain regular maintenance then you should choose filters that require low maintenance and require little maintenance. Or you can also choose filter indicators to indicate when you need to clean the filter.
Additional features such as indicators may cost a bit of money, but this is a necessary feature if you do not have too much free time to care about the aquarium.
You should never choose a filter based on price criteria. Well-known brands always cost a bit higher than other products of the same quality. It is a profit problem that perhaps our consumers can understand implicitly.
So to save your budget, you should take some time to search for products with good specifications, maybe of some famous brands, little known.
And you should never choose the most expensive filter because it is not necessarily the best, the best filter is the most suitable for your aquarium.
Warranty is also one of the privileges for customers so that you should not ignore this benefit for you. The extensive warranties are always a good insurance for your investment.
Usually current filters come with a 1-year warranty, but there are also manufacturers that extend this period. Some of the same quality but with a better warranty should be your choice.
Selecting a filter for a small aquarium is not as simple as you think. How to choose a filter size and capacity that fits the modest tank size is a question for many people. That’s why we chose to publish this article.
After reading this article, you should be able to grasp some basic information enough to make your choice. Hope to please you!