Best UV Sterilizer Aquariums For Your Healthy Pet Fishes

The UV sterilizer aquarium is one of the things chosen by many people because of its beautiful design, along with that, creating the aesthetics of many aquariums. It can help reduce bacteria in the water, providing a healthy environment for the fish. This product is a technological innovation that makes keeping fish much easier. Fish hobbyists will no longer have to worry about harmful microorganisms invading and injuring their fish.

However, if you choose the wrong type of UV sterilizer aquarium, you will inadvertently kill even the beneficial bacteria inside the fish tank. So how can you choose and what should you pay attention to in order to maximize the benefits? Let’s discover the top 5 best UV sterilizer aquariums to understand more about this product. 



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Top 5 Best UV Sterilizer Aquarium

Top 1: Emperor Aquatics Smart UV Sterilizer

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High-quality material

The Emperor brand notices much to the quality of the product. It chooses some materials that are waterproof, corrosion-resistant, and safe for your fish and plants. When buying the UV sterilizer aquarium, you also receive a quartz sleeve. If you own a fish that needs to live in a cold aquarium, the quartz sleeve is a good choice because the UV light needs insulation to work efficiently. 

Good power

Many people recommend that the Emperor UV sterilizer aquarium provides better power than other same products. It is more suitable for big aquariums, even the 125 gallons ones. You will be amazed by its power. This sterilizer aquarium is viable at eliminating illness-causing microorganisms even at rates up to 200 gallons each hour.


You do not need to worry about how often you have to change a new sterilizer since this product is reliable and durable more than your expectations. Only the UV bulb of the sterilizer can work for 9000 hours, which means more than 1 year. Moreover, the casing is heavy and watertight so you can use it for a long time. 

Minus point: no remarkable downside was found.

Top 2: SunSun JUP-01 9W UV Sterilizer Submersible Filter Pump

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Good power

This UV sterilizer aquarium provides a strong power of up to 210 gallons per hour, therefore, you need to determine the right size of your tank and the type of fish and plants before purchasing the product. This suction may not be suitable for reef tanks. However, if you have an aquarium larger than 75 gallons, it will be an excellent choice. 

Easy installation

Thanks to the long and small design, you can place the UV sterilizer aquarium more easily. It can be hung vertically or evenly relying upon the arrangement of your tank. It just takes you few minutes to finish the installation process. 


The SunSun brand provides a built-in pump included in the product when you buy it. Moreover, instead of interfacing in-line with your water stream framework, this product is intended to hang inside your tank. 

Minus point: this UV sterilizer aquarium may not be suitable for small tanks.

Top 3: AquaUltraviolet Aquarium UV Sterilizer

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Adjustable flow rate

Its power is up to 240 gallons per hour so this product is suitable for medium tanks the most. One more outstanding point of it I want to mention is the adjustable feature. When buying the AquaUltraviolet sterilizer aquarium, you will receive a pump system. It will help you to adjust and slow down the flow rate to the right level you need.

Easy installation

A 10-minute is the time you need to install this UV sterilizer aquarium. Sound easy and simple, right? Everything is included when purchasing this product so you do not need to go out and buy more tools anymore. There are a power supply, UV tube, and Housing.

Good customer service

At the point when you buy this item, you likewise get the best client support from the AquaUltraviolet brand. On the off chance that anything happens to your UV sterilizer aquarium or you don’t know how to make it work, kindly don’t spare a moment to call for help. They work seven days per week and will help you right away.

Minus point: some parts of this UV sterilizer aquarium are plastic, therefore, they are a bit fragile.

Top 4: COODIA Internal Green Water Killer Filter Aquarium Tank

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Good power

If you own a medium or large aquarium, this product is right for you. Its power is strong and can clean the tank effectively. Only after 3 to 7 days, the water will be clear and you can’t see any existence of floating algae anymore. 

Added features

There are many things included when you buy this UV sterilizer aquarium such as suction cups or air bubbles. The suction cups make the installation process easier because they are strong and can stick to the tank. Moreover, you will be relaxed when watching the bubble from the air bubble machine. It creates a more beautiful and vivid environment for both fish and plants. You can use this product in both freshwater and saltwater since it has a ceramic rotator, preventing corrosion issues. 

Minus point: this UV sterilizer aquarium is in big size, therefore, it may not suitable if you have a small tank.

Top 5: Coospider Sun JUP-01 Aquariums in Tank

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Multifunctional feature

Buying 1 product but you can use it for 4 different purposes. This is an outstanding point of the Coospider UV sterilizer aquarium, receiving many good compliments from users. One machine can be a water pump, air pump, filter, and cleaning. You can switch to different modes easily and conveniently, saving time and effort to take care of fish well. Moreover, you can use it directly in the aquarium, without any support. 

Good power

This product provides 210 gallons per hour and is suitable for tanks up to 80 gallons. It has a small motor inside that helps it run more smoothly and productively. It does not bring loud noise when running.


The brand offers a 1-year warranty for its customer. Therefore, you can make sure about support and its policy when purchasing the UV sterilizer aquarium. Or if you do not know how to make it work and have some questions, you can send them to the service mailbox and you will receive the answer after 24 hours.

Minus point: no particular drawback was found.

Why should I buy a UV sterilizer aquarium?

Usually, the suckermouth catfish is only able to remove some of the sediment left by the leftover food in the aquarium. But the UV light will completely kill the bacteria in the aquarium to ensure the living environment of the fish is always at a safe level. The bactericidal effect of UV rays will depend on the density and environmental conditions as well as the time of radiation. In addition, the use of UV lights for the aquarium also increases the immunity and resistance of the fish because there are no harmful bacteria in the aquarium that can affect them.

Moreover, this method does not contain chemicals. Therefore, it can eliminate the fishy smell of the tank and keep the water source safe for the fish. The UV sterilizer aquarium also requires less energy and cost-saving. The energy consumption is very low, only equal to one 60 watt bulb and you do not have to change the bulb often, just once a year. 

How can I choose the right UV sterilizer aquarium for my fish tank?

Choosing the most suitable UV sterilizer aquarium is not an easy task, especially for the inexperienced. You have to consider many things before purchasing it:

  • The size: different sizes of the UV sterilizer aquarium show different powers and water flow rates. The blend of UV wattage and stream rate decide how successful the disinfection will be and how rapidly the entirety of the water in the tank will be turned over through the sanitizer. For example, to calculate the size of UV sterilizer that your tank will need, you just multiply the wattage of your UV sanitizer by its powerful stream rate and afterward partition by 1.5.
  • UV transmittance: you can measure the UV transmittance on a scale from 0 to 100. 100 means there is nothing that can prevent the UV light while 0 means the UV light can transmit to anywhere in the tank. It is generally influenced by the turbidity, or darkness, of your tank’s water.
  • UV lamp: there are 2 types of UV sterilizer: low and medium pressure. Most people prefer the low-pressure UV lamp more because it has higher and better performance. However, it is not suitable for a cold water environment as it is sensitive to temperature fluctuations.

Best UV Sterilizer Aquarium FAQs

Do I need to notice something when using the UV sterilizer aquarium?

If you want to use and maintain the UV sterilizer aquarium as a long-lasting product, you should focus on these things below:

  • Choosing a lamp with a capacity that is appropriate for the size of the aquarium. You should not choose a lamp with too large or too small capacity. Because they can affect the fish’s environment.
  • Do not place it in the main location of the tank and filter material storage because the light of the lamp will destroy beneficial microorganisms for the fish. 
  • Careful shielding should be taken so that the light does not affect directly humans or other live animals.
  • Replacing the new lamp once a year. This applies to all UV lamps, even though the lamp is still on.

How long should my UV sterilizer aquarium work each day?

The UV sterilizer aquarium is durable and can work all day. Many people turn on their product and let it run for seven days a week. It depends on your needs but there are no negative impacts on the running UV sterilizer aquarium. However, maybe you want to pay attention to the additional expense on your electric bill. And turning over the tank each 30-an hour builds the viability of the sanitizer at forestalling illnesses flare-ups.

How often should I clean my UV sterilizer aquarium?

It is necessary to clean the UV sterilizer aquarium to make sure it can work best. Any filth developing outwardly of the light will diminish its cleansing productivity. Cleaning the sanitizer once each month is ordinarily adequate. Furthermore, on the off chance that you have a quartz sleeve on your UV light, that should be cleaned at regular intervals to forestall issues with conveyance diminishing over the long run.

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