Coralife BioCube Aquarium Mini Ultraviolet Sterilizer

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$56.95 (-41%) Chewy Price
$96.99 List Price
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
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Pay in 4 interest-free payments of $14.24. .

About This Item

Details

  • Ultraviolet sterilizer designed to help keep your aquarium clean.
  • Kills free-floating algae, microorganisms and harmful bacteria.
  • Ensures your underwater buddies have a healthy place to swim.
  • Features a low-voltage ballast and 5-watt bulb.
  • Includes a universal adaptor for use with small aquariums.
Learn More About Coralife From Our Team of Experts

Enhance Water Clarity and Health

Coralife UV sterilizers are great for any aquarium, helping to maintain a clean and healthy environment for your aquatic life. They use ultraviolet light to eliminate harmful microorganisms, including parasites, bacteria and free-floating algae.

Enjoy the Wonders of Aquarium Keeping

Coralife is dedicated to making your aquatic adventure seamless and successful. From your first tank setup to maintaining a thriving marine ecosystem, their products and expertise are there to support you every step of the way.

Essential Saltwater Tank Accessories

Coralife offers two UV sterilizers to keep your aquarium water clean and clear: the BioCube Aquarium Mini Ultraviolet Sterilizer, perfect for the Bio Cube, and the Turbo-Twist Ultraviolet Sterilizer, designed for larger aquariums.

Available in Multiple Sizes

The Coralife Turbo-Twist Ultraviolet Sterilizer provides enhanced UV exposure thanks to its unique twist flow design. Available in multiple sizes and wattages, it’s suitable for a range of aquarium setups—choose the right one for your specific needs.

About Coralife

Coralife is dedicated to enhancing marine life for beginners and experienced hobbyists alike. From their innovative BioCube Aquariums to lighting, filtration systems and marine salt mix, they have the perfect solutions for your underwater world.

Shop Coralife

Questions & Answers

7 Customer Questions

- sizes 14, 29? What is the volume? thanks

Answer by Chewy • Feb 24, 2022
The volume for this sterilizer has not been recorded as it does not move any water. It connects to your existing BioCube pump. The dimensions of this sterilizer are 8.4 x 4.5 x 2.4 inches.

This fits in the 16G Nano, too? It says 14,29...

Answer by Chewy • Aug 28, 2021
This product is designed to fit inside all Oceanic BioCube aquariums and Coralife BioCube Aquariums, including the newer Coralife Size 16 and Size 32 LED BioCube Aquariums.

Can this be used in a 10 gallon tank

Answer by Chewy • Nov 11, 2021
This sterilizer is intended for use with BioCube sizes 14, 29 amd HQI.

Where can I get replacement bulbs?

Answer by Chewy • Mar 09, 2020
At this time, replacement parts are available separately through the manufacturer.
Reviews
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4.2
Rated 4.2 out of 5 stars
38 Ratings
Terms & Conditions

24 Customer Reviews

Rated 1 out of 5 stars
By Mitch on Nov 30, 2025

Already bad

It hasn’t even been installed for a month and the light is already bad.

It hasn’t even been installed for a month and the light is already bad.

Rated 5 out of 5 stars
By Matt on Apr 15, 2023

Works great!

These UV Sterilizers work great and fit perfectly in my Biocube 32. I have had one on my mixed reef for about 9 months and it keeps the water clear and the unwanted

These UV Sterilizers work great and fit perfectly in my Biocube 32. I have had one on my mixed reef for about 9 months and it keeps the water clear and the unwanted algae away. Decided to just buy a whole new one as a replacement when the bulb burned out on the old one because it was cheaper than buying the replacement bulb fixture and housing. Thanks Chewey!

Rated 1 out of 5 stars
By SaltwaterReefer on Jun 15, 2022

Worked awesome for 2 months then died

I was initially very happy with the Coralife Mini UV sterilizers. Super easy to plumb into my nano tanks and seemed to control the algae quite well. However, I noticed

I was initially very happy with the Coralife Mini UV sterilizers. Super easy to plumb into my nano tanks and seemed to control the algae quite well. However, I noticed an algae bloom happening on my saltwater nano tank and realized that the sterilizer was not on. I opened up the case and found the bulb was burned out. The exact scenario just happened with the other Coralife Mini UV sterilizer that I had on my freshwater tank. Both sterilizers burned out almost exactly 2 months from plumbing into my tanks.

Rated 3 out of 5 stars
By Rachel on Nov 8, 2021

Short bulb life - great while it lasted

This worked well to help with my dinoflagellate problem in my 14g biocube. Sadly, the bulb burned out after just 4 months of use, and the price for a replacement

This worked well to help with my dinoflagellate problem in my 14g biocube. Sadly, the bulb burned out after just 4 months of use, and the price for a replacement is practically the cost of a new UV sterilizer unit. At this rate, the cost of the bulbs make this a bad investment...

Rated 3 out of 5 stars
By kayak11 on May 14, 2021

i couldn't figout how to use the Universal adapter

I could not figure out how to use the universal adapter to install on my none bio cube tank. I asked Chewy how, and the directions chewy sent me didn’t include how

I could not figure out how to use the universal adapter to install on my none bio cube tank. I asked Chewy how, and the directions chewy sent me didn’t include how to install the adapter. I was unable to use it. I received this product in exchange for an honest review.

Rated 1 out of 5 stars
By Kayfer on May 14, 2021

Can’t use Universal adapter

I was not able to use the Universal adapter on my non bio cube tank. I couldn’t find the directions for it and the video chewy sent me didn’t include the directions

I was not able to use the Universal adapter on my non bio cube tank. I couldn’t find the directions for it and the video chewy sent me didn’t include the directions for the adapter

Rated 4 out of 5 stars
By Melisa on May 5, 2021

Probably good for small tanks..

The tank we own is a smidge too large to be compatible with this sterilizer unfortunately. My husband says we'd need an additional part in order to get it to to

The tank we own is a smidge too large to be compatible with this sterilizer unfortunately. My husband says we'd need an additional part in order to get it to to be usable in our tank and even so I don't know that it would be much use since this is designed for use in smaller fish tanks. Despite my lack of research into this before purchasing, I do think this is a brilllant product with a great use. I am curious as to the light bulb replacement issue that others have brought up. I will use this when we get a smaller tank and new fish! Product received for free in exchange for an honest review.

Rated 5 out of 5 stars
By AdamD on May 2, 2021

Works great

I’ve had bad hair algae issues for a year and a half and have tried everything. I’ve only had this for a couple weeks and so far it has helped. Water is noticeably

I’ve had bad hair algae issues for a year and a half and have tried everything. I’ve only had this for a couple weeks and so far it has helped. Water is noticeably clear and installation was very simple.

Rated 5 out of 5 stars
By MarcyB on Mar 31, 2021

The sterilizer i never knew i needed!

I was given the opportunity to try this CoralLife mini ultraviolet sterilizer and have to say I am very impressed! I love the packaging and the sleek design, but

I was given the opportunity to try this CoralLife mini ultraviolet sterilizer and have to say I am very impressed! I love the packaging and the sleek design, but what I am most please with is how clear my water is since I have been using. My fish also seem healthier and less disease prone. Would recommend. I received CashBack on this purchase and participated in a CashBack program.

Rated 5 out of 5 stars
By MarcyB on Mar 31, 2021

A Sterilizer I never knew I needed

I was presented an opportunity to try the Coralife BioCube Aquarium Mini Ultraviolet Sterilizer and was really impressed on how much this product has cleared up

I was presented an opportunity to try the Coralife BioCube Aquarium Mini Ultraviolet Sterilizer and was really impressed on how much this product has cleared up the algae in my tank. My water is clearer and my fish seem to be less prone to disease. I love the sleek design and packaging. Would definitely recommend to any Hobbyist! I received this product as part of a promotion.