Welcome to our review of the best UV sterilizer. After a series of research and testing, We’ve glad to list the 6 best UV sterilizers we’ve discovered in the market today.

These UV sterilizers are efficient, easy to install, and has the capacity to work on different size of fish tanks.

Having said that, if you’re looking for the best aquarium UV sterilizers, then you should check out the 6 best products we’ve highlighted and reviewed for you below.

Buyers Guide: Things to Consider Before Buying an Aquarium UV Sterilizers

Capacity: This factor is significant. There are sterilizers that can’t work proficiently on an enormous tank. That is the reason you should initially check the limit and appropriateness of a thing to the size of your tank and its flow rate.

UV light contact time: The more drawn out the contact time is the better. It just implies that more UV light is working in executing the issues like green growth. Be that as it may, it additionally has to do with the water flow rate. Along these lines, it just implies that there is more contact of the light with a low water stream rate. For this situation, more microorganisms will be slaughtered in that procedure. Something else to influence the presentation is the time that the light is on. Hence, it is smarter to realize that more presentations to the light works incredible.

Durability: We would prefer not to spend on a thing that breaks after a couple of employments. Trust me, it is so upsetting to squander your cash on that. That is the reason it is critical to check for quality and toughness. However much as could be expected, let us additionally check if the item is UL/CUL Listed to guarantee consistency and going to various standards.

Type: Know that there are essential sorts accessible; they are the dry bulb, the plate type, and the wet-bulb type. Think about dependent on the highlights, advantages, and disadvantages of getting any of these.

Bulb power: If you’re hoping to kill a wide scope of microorganisms, you should locate a high wattage to create a higher measure of UV light.

Best UV Sterilizers for Aquarium Compilation Chart

Product Features Where to Buy
AA Aquarium Internal UV Sterilizer up to 50 Gallon

  • Can be installed easily
  • Comes with a powerhead
Get it on Amazon
COODIA Internal UV Sterilizer up to 55 Gallon


  • Comes with a water pump
  • Includes a UV light
Get it on Amazon
AA Aquarium Internal UV Sterilizer up to 20 Gallon

  • Sealed UV bulb
  • Helps prevent green water
Get it on Amazon
SunSun JUP-01 9W UV Sterilizer up to 75 Gallon Aquarium

sun sun

  • Integrated pump
  • Includes a mounting bracket and suction cup
Get it on Amazon
SunSun JUP-02 5W UV Sterilizer up to 40 Gallon Aquarium

  • Ideal for tanks with up to 40 gallons
  • Includes a powerful 5W light
Get it on Amazon
AA Aquarium Internal UV Sterilizer up to 120 Gallon

  • LED signals if lamp replacement is needed
  • UV light efficiency with reduced water flow
  • UL Safety Tested
Get it on Amazon

Best UV Sterilizers for Aquarium in Capacity

AA Aquarium

AA aquarium

In the event that you need to keep your tank clean, you can look at AA Aquarium UV sterilizer. It is a conservative and simple to introduce sterilizer that has an extraordinary limit. You can utilize it in any event, for a 50-gallon tank. The sterilizer carries out its responsibility well as far as cleaning the water in the tank. On the off chance that you are a genuine specialist that needs to keep your fish sound, you ought not to miss this thing.

It can assist with controlling the microscopic organisms and kill the green growth. With it, you can likewise improve the clearness of your tank. This thing additionally includes a propelled UV framework that you can depend on to carry out its responsibility. Nonetheless, it very well may be dubious to introduce for amateurs. In general, you can look at it to keep your tank water perfect and clear.

Pros Cons
Complete with accessories A bit tricky to install for first-timers
Ideal for tanks up to 50 gallons



This UV sterilizer is another incredible choice for individuals keen on keeping a fish tank. What is acceptable about this inner UV disinfect is that it is ok for use in either a freshwater or saltwater arrangement. I might want to take note of that this thing has a huge limit that it works for up to 150 gallons tank. Moreover, this model is finished with a UV light that can keep going long. I am likewise happy to suggest it since it accompanies a productive 5-watt water siphon. This model can likewise help in creating air pockets to the water.

Likewise, it accompanies an earthenware production rotator that is made of noncorrosive material. On the cons, the siphon may experience the ill effects of harm after some time. Yet at the same time, I might want to suggest this sterilizer in case you’re searching for a quality and tough sterilizer that will give you the most out of your spending.

Pros Cons
Large capacity Pump might suffer from damage over time
Easy to set up and maintain

AA Aquarium 120 Gallon

120 gallon uv sterilizers

The huge limit UV sterilizer shouldn’t miss when contrasting your decisions for this thing. It is ground-breaking that it is reasonable for up to a 120-gallon tank. With it, you can ensure that the tank water is spotless, improving the strength of your fish. Likewise, the inside UV sterilizer is anything but difficult to introduce that you just should place it into your tank for clean water in a couple of days.

The light beams originating from this unit can control the coasting yeast, microorganisms, and other destructive organisms in your tank. With it, you can likewise be sure of disposing of the darkness in your tank without utilizing any synthetic chemicals. On the cons, it is somewhat costly, however, yet it is incredible and productive. It can give you genuine feelings of serenity of getting the greater part of your spending.

Pros Cons
Can be used for freshwater or saltwater tanks expensive
No tools needed

Best UV Sterilizers for Aquarium in Design

AA Aquarium 20 Gallon

aa 20 gallon

Cleaning a tank that gets filthy essentially so quick is very irritating for a significant number of us. That is the reason we need gadgets like a UV sterilizer, similar to this AA aquarium sterilizer. This UV sterilizer is a first-class thing that has sold in excess of 500,000 units around the world. It likewise includes all the things we need, so it doesn’t require exceptional devices. The thing additionally accompanies a fixed UV bulb, offering incredible adequacy and water stay time.

At long last, the sterilizer accompanies a liberal three years of guarantee on the siphon. Notwithstanding, this model isn’t appropriate for a bigger tank. In general, this thing can assist us with bidding farewell to green growth. It is an incredible machine that can dispose of the poisons, microbes, and green growth to keep our pet fish cheerful and solid.

Pros Cons
Easy to install plug-and-play design Smaller capacity
Good warranty included

SunSun JUP-01 9W

sunsun uv sterilizers

The JUP-01 sub UV sterilizer is another top pick that won’t let you down. It is a stunning item that can guarantee that there will be not any more drifting green growth and microorganisms that may somehow or another put your fish at serious risk. Something that I enjoyed about this sterilizer is that it is viable and basic. It is a sub kind of sterilizer that makes it more effective than different models are with regards to the cleansing advantages.

I likewise enjoyed that we don’t have to purchase any extra course siphon or tubing. This model likewise accompanies an incorporated siphon, so it doesn’t require getting it. In any case, this model is somewhat cumbersome, however. All things considered, it is a suggested UV sterilizer since it is effective and strong.

Pros Cons
Keeps aquarium water clean Bulky
Prevents waterborne diseases

SunSun JUP-02 5W 40 Gallon

Another UV sterilizer not to miss when looking at your choices is this JUP-02 thing that is a solid pick for some tank proprietors. This model is reasonable for tanks with up to 40 gallons of water. This model is additionally prepared to introduce in light of the fact that it comes total with the adornments you need.

It is additionally flexible and minimized that it won’t ruin the presence of your tank. I might likewise want to take note of that this UV sterilizer is with mounting sections. On the cons, this thing isn’t for individuals searching for a higher limit UV sterilizer, however. In any case, it is the thing that you requirement for its unwavering quality and effectiveness. Look at it for yourself.

Pros Cons
Has a flow rate of 132 GPH Not suitable for tank owners looking for a higher capacity UV sterilizer
Made of premium materials

How We Picked

We relied on the opinion of experts and feedback from clients based on two major factors: Capacity & Design.

Before publishing this post, more facts and data about these UV sterilizers were gotten from further research and online reviews (both positive & negative). With the result and feedback we got, we were able to rank each product according to the standard we set.

If you observe the reviews carefully, you’ll see that each sterilizer has been carefully categorized according to our research result. However, take note that the sterilizers that didn’t meet our standard were not included among this list.

Frequently Asked Questions

Do UV sterilizers work in an aquarium?

A UV sterilizer may be utilized in any aquarium, be that as it may, in smaller aquariums (less than 24 gallons), the expense of the unit may make it unreasonable. The UV sterilizer will likewise execute free-skimming microscopic organisms in the lake water.

How long should I run my UV sterilizer?

The utilization of UV sanitization, or bright germicidal illumination, has been seen as very powerful. Sources of UV sterilization can kill over 99% of infections, microscopic organisms, and growths in an incredibly short measure of time.

How long should I run my UV sterilizer?

I would leave it on 27/7 until the water is clear. You should also do some huge water changes to evacuate the dead green growth. You could run it varying relying upon your tank conditions. I have run one day in and day out on my 72g for well longer than a year and have not discovered any issues doing as such.


Picking the best UV sterilizers for your fish tank is something that ought to be considered important and without missing words,  we believe that this review must have helped you in selecting the right type of sterilizers for your aquarium. Be that as it may, ensure you check all the necessary details of your preferred choice before purchasing.