The Aqua Guru is reader-supported. We may earn commission on sales via our links at no extra cost to you. View Policies.

Best UV Sterilizer For Aquariums

The Best UV Sterilizer For Aquariums 2020

A UV sterilizer is a practical approach to eliminating microscopic waste that will be floating amongst the water. It’s able to eliminate bacteria through the use of a UV light bulb.

The best UV sterilizer on the market is the AA Aquarium Green Killing Machine, as it has a wide disinfecting wavelength range and a lengthy 3 year warranty.

Down below is an article on the best UV sterilizers for a wide variety of tanks sizes and environments. You should check out performance features such as power output before purchasing one for your aquarium.

UV Sterilizer Comparison

UV SterilizersAquarium Size (Gallons)Power Output (Watts)
AA Aquarium Green Killing Machine509
Emperor Aquatics12525
SunSun JUP759
Coralife Turbo-Twist50018
AquaUltraviolet Advantage7515
Jebao CW-5550 +55
Brother123shop 758

While trying to find the most appropriate UV sterilizer for your aquarium, you should check out key aspects about them before buying them. These include its power output and dimensions, for aquarium suitability.

In addition to that, it may be worth checking out if it is suitable for both freshwater and saltwater tanks.

Below is a feature article on the best UV sterilizer online.

The Best UV Sterilizers For Aquariums


1. AA Aquarium Green Killing Machine UV Sterilizer 

The best all-round UV sterilizer for an aquarium is the AA Aquarium Green Killing Machine, as it has an effective flow rate of 60 gallons per hour whilst remaining at a compact 9-Watt size which is ideal for aquariums up to 50 gallons.

Moreover, the AA Aquarium Green Killing Machine has a simple setup, as it’s designed to hang inside the aquarium, rather than a connect in-line into your system.

In terms of features of the AA Aquarium Green Killing Machine UV Sterilizer, they include:

  • Aquarium Size Suitability: 50 Gallons
  • Dimensions: 16 x 10 inches
  • Power Output: 9 Watts
  • Backed-up by a 3 year warranty.
  • UV sterilizer offers disinfecting radiation at a wavelength of about 254 MM

Ultimately the AA Aquariums Green Killing Machine is by far the best UV sterilizer on the market. It’s attributes to exterminate algae growth, such as its zigzag flow path so it can increase exposure to effective UV light that will eliminate any algae or harmful bacteria, make it the best on the market.

In addition to that, the package includes suction cups for easy mounting whilst setting up and it has a practical control box LED that makes you aware of when bulbs need changing!

Check it Out

2. Emperor Aquatics Smart UV Sterilizer

The best UV sterilizer for large aquariums and outdoor ponds is the Emperor Aquatics Smart UV Sterilizer, as it has the performance to effectively kill bacteria in tanks with a capacity up to 125 gallons!

Moreover, the UV sterilizer comes with quartz sleeve, which makes it ideal for a cold freshwater tank, whereby the UV light needs insulation to do its job efficiently.

Other features of the Emperor Aquatics Smart UV Sterilizer include:

  • Aquarium Size Suitability: 125 Gallons (Aquarium) & 2360 Gallons (Ponds)
  • Dimensions: 29 x 3 inches
  • Power Output: 25 Watts
  • Versatile enough for out door use in ponds.
  • One of the most powerful on the market.

Overall, the Emperor Aquatics Smart UV Sterilizer is one of the most powerful UV Sterilizer products on the market. Plus, the UV bulb itself has a 9000 hour rated lifespan(also known as a year of use) to ensure its longevity. This can be also backed up by the fact that its produced from water-tight. corrosion resistant and heavy UV resistant plastic construction to ensure its durability.

Check it Out

3. SunSun JUP UV Sterilizer Submersible Filter Pump

A great example of an effective UV Sterilizer for a reef aquarium is the SunSun JUP, as it delivers an effective performance at eliminating algae up to tanks with 75 gallons capacity. Moreover the SunSun JUP requires no additional tubing or circulation pumps, plus they’re compact which makes installation simple!

Features of the SunSun JUP UV Sterilizer include:

  • Aquarium Size Suitability: 75 Gallons
  • Dimensions: 12 x 3.3 inches
  • Power Output: 9 Watts
  • High flow rate at 210 gallons per hour.
  • For fresh, saltwater aquariums or garden pond.

Overall the SunSun JUP is a great product as it features practical properties such as its large mechanical pre-filter sponge to assist with capturing debris, so that UV exposure can be fully optimized.

Check it Out

4. Coralife Turbo-Twist UV Sterilizers

An incredibly versatile UV sterilizer is the Coralife Turbo-Twist, as it can deal with both saltwater and freshwater tanks whilst dealing with capacity’s up to 500 gallons!

Additionally to that the Coralife Turbo-Twist does an exceptional job at successfully removing algae and bacteria by using its potent 18 Watt UV light.

In terms of features of the Coralife Turbo-Twist UV Sterilizer, they include:

  • Aquarium Size Suitability: 500 Gallons
  • Dimensions: 13 x 9.8  inches
  • Power Output: 18 Watts
  • Light shielded by a high-quality quartz glass sleeve
  • Increased exposure to UV light from twist-flow design

Ultimately the Coralife Turbo-Twist is a very versatile UV sterilizer that also has practical aspects to it as well, such as it has mounting brackets included for positioning it. Moreover it has an indicator light to make you aware that the sterilizer is operating.

5. AquaUltraviolet Advantage 2000+Aquarium UV Sterilizer

If you’re searching for a world-renowned USA brand that are quality manufacturers of aquatic products, then the AquaUltraviolet Advantage 15-Watt Aquarium UV Sterilizer will be the product for you.

The Advantage sterilizer effectively removes viruses, bacteria and algae from your water environment without issue, due to its market leading 15 Watt sterilizer. Furthermore it has a slim-profile, which makes it suitable for smaller aquariums.

Other features of the AquaUltraviolet Advantage UV Sterilizer include:

  • Aquarium Size Suitability: 75 Gallons
  • Dimensions: 12.5 x 2.8 inches
  • Power Output: 15 Watts
  • High flow rate at 233 gallons per hour.
  • Can be used for reef tanks & ponds.

Ultimately the AquaUltraviolet delivers effect performance and is suitable for use reef tanks and ponds, as well as regular aquariums. Its a sturdy built and high performing sterilizer that will not disappoint you , even if something does go wrong you have unrivalled customer service to support you with the issue at hand.

6. Jebao CW-55 Sterilizer

Another great all-rounder sterilizer that doesn’t break the bank, is the Jebao CW-55. This is down to its effective performance at removing organic organisms that hinder development of your aquarium. It does this through the use of its powerful 55 Watt power output,  its ultraviolet lamp emits a germicidal ray which alters or disrupts the DNA or RNA of targeted organisms such as bacteria and protozoa.

Features of the Jebao CW-55 Sterilizer include:

  • Aquarium Size Suitability: 75 Gallons
  • Dimensions: 26 x 6 inches
  • Power Output: 55 Watts
  • Has a 25 ft power cord for convenience.
  • Quick-lock design, which is durable and weather-proof as it can be used in ponds.

Ultimately the Jebao is a great all-rounder sterilizer as most likely its primarily based to be a sterilizer for outdoor ponds, but is suitable for large aquariums as well. Furthermore it has  relatively cheap price when you consider its high performance standards that are pretty hard to rival.

Check it Out

7. Brother123shop Sterilizer UV For Aquariums

The best budget UV Sterilizer is the Brother123ship, as it may be a not very well known brand but it delivers performance that is rivaled with the larger brands. This can be due to its 8 Watt power output that clears the tank of bacteria and can be guaranteed of a long life span.

In terms of features of the Brother123shop Sterilizer, they include:

  • Aquarium Size Suitability: 75 Gallons
  • Dimensions: 3.25 x 10 inches
  • Power Output: 8 Watts
  • High powered 211 gallon per hour flow rate.
  • Pre-sponge mechanical filter included.

Ultimately the Brother123shop Sterilizer is an effect product that will ensure algae and harmful bacteria is successfully removed from your aquarium. Its built in UV-C lamp ballast and single power cord mean streamline and clutter-free installation for effective operation.

Check it Out

Conclusion

Searching for the best UV sterilizer for your aquarium can be difficult to do as there are a lot of attributes of them that can guide your decision making, so it can be time-consuming to find a unique property between sterilizer.

However if you go through this article, it should raise some important factors that might be more preferential for your type of fish tank such as flow rate per hour, power output, dimensions and aquarium size suitability.

All of the recommendations listed that we have included, go over a wide variety of price ranges, aquarium sizes and aquatic species suitability.

About The Author

the aqua guru author

Jon is an aquarium keeper of over 15 years and the owner of Guppy's, Betta's and other marine life. He always likes to make changes to his aquarium for the benefit of his marine life's well-being and health using the best aquatic products on the market. You can read more about us here.