AA Aquarium Green Killing Machine Internal UV System

By AA Aquarium
Rated 4.4783 out of 5 stars
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AA Aquarium Green Killing Machine Internal UV System, 3-watt slide 1 of 3
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AA Aquarium Green Killing Machine Internal UV System, 3-watt slide 1 of 3

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$49.99Chewy Price

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This Item - AA Aquarium Green Killing Machine Internal UV System, 3-watt
Rated 4.4783 out of 5 stars
$49.99Chewy Price

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About This Item

  • Promotes dazzling, clear water in your finned friends’ abode.
  • Designed to be easy to install—no tools necessary!
  • Helps remove murkiness from aquarium water.
  • Helps create a green-water-free home for your fish!
  • Comes with a powerhead.
Play Video: Learn More About AA Aquarium From Our Team of Experts
Learn More About AA Aquarium From Our Team of Experts

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Aquarium TypeFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, Saltwater
Fish TypeBetta, GoldfishTropical Freshwater, Marine Fish

Questions & Answers

42 Customer Questions

how can you tell if the light is actually on? you cant see it at all , it is sealed up. Pump has flow, but want to be sure its on
Answer by kittenpapaJul 18, 2020
When your water goes from much to crystal clear. This thing is a miracle and took my new 75 gallon tank from heartbreak to crystal clear in a few days.

Do I need a regular filter if I use the Green Machine?
Answer by ChewyAug 09, 2018
You can use the filter in your tank, but this sterilizer does require a specific sponge insert. Replacement sponges (model RUV09W-S) can be purchased from the manufacturer site.

My water is crystal clear now If I have no timer how often should I turn on machine
Answer by ChewyNov 11, 2020
UVC bulbs typically last about 6-9 months in constant use. Some bulbs can last up to a year. To lengthen the service of your bulb, we suggest once your water is sparkling clear for 7 full days, start using your UV on a limited as needed basis. Run it with your light timer or only on weekends, etc.

how long does this last before having to replace it and how do you replace it?
Answer by ChewyMar 25, 2018
The light should be replaced every 6-12 months. Please see the manual for replacement steps.

ReviewsWrite a Review

Rated 4.4783 out of 5 stars
207 Reviews
Would recommend to a friend

207 Customer Reviews

Rated 5 out of 5 stars
By MattyM on Sep 22, 2022

Quiet, Adjustable Flow - Amazing Job on my 20 gallon

Went from pea soup to very clear in 8 days. It's quiet, has an adjustable flow rate, and stays put (tip - wipe your glass off before mounting). The suction cups are good - I did have to remount it once so far, not a big deal. My tank is now thriving, and even though there's still a slight green tint I think it's clearer than it's ever been before. I'm going to run it another week or so to be sure I'm completely rid of the algae bloom. Great product and great for the health of your tank.

Rated 5 out of 5 stars
By Stephanie on Sep 12, 2022

GREAT Product

We were having LOTS of problems with our fish tank. Too much algae as one example. Once we got this as well as a second filter-Marineland Bio-Wheel Emperor, onto our fish tank, we have not had a single fish die and we have not had any problems. We barely even have to do any fish tank water changes. So much easier. We were having to do water changes every day/every other day before this machine. We have not had any algae whats so ever. We have even had to start feeding algae tablets to our pleco.

Rated 5 out of 5 stars
By Valerie on Jul 25, 2022

It’s name says it all!!!

This product is a game-changer! I struggled with a cloudy aquarium for months and tried everything, only avoiding chemical treatments that might negatively impact my pet Axolotl. I finally decided to invest in this product and within one week my tank was the clearest it’s ever been! It’s amazing!!!

Rated 5 out of 5 stars
By Flmom2 on Jun 20, 2022

Clear tank

I was very hesitant to spend the money. But after trying clarifiers. Water changes and everything I finally got my tank clear. My water levels were all perfect but I got algea bloom. Nothing I did even weekly water changes worked. Finally bought this light and in 3 days with ny 20 gallon it's crystal clear. I took the light out and plan to reuse if I need too. Day 7 now still clear. Fish are happy.

Rated 5 out of 5 stars
By cheryl on Aug 12, 2022

worked great!!!

My tank just kept getting greener. Nothing I did worked. I bought the small size for my 20 gallon long. I wasn't sure if it was working, but after 6 days I noticed a big improvement and by day 12 it was clear.

Rated 5 out of 5 stars
By Ashley on May 31, 2022

Took awhile, but it did work!

It appears that most people get results from this product over a few days. It took almost 2 weeks for this pump to clear my tank. Ultimately, however, it did work and my tank is FINALLY crystal clear! Admittedly, I have been fighting a persistent case of algae for a long time, NOTHING seemed to work, so the pump had a big job. Patience and time was all it needed. I am using this filter in a 10 Gal fresh water tank. It's bigger and bulkier than I like. This is not a little filter. With roughly 1.5 inches of gravel on the bottom of my tank, the filter is too tall to place vertically and still keep submerged. I had to place it at a bit of an angle. It also has quite a current associated with it, which made it a bit difficult for my betta to swim near it. Adjusting the flow helped a little. On the plus side, it is quiet. I barely heard it. And it DOES work. For the first time in months, I have crystal clear water. And for that, I'll deal with a bulky filter in my tank.

Rated 5 out of 5 stars
By Weezy on Aug 17, 2022
Top 10 Contributor

Made my 65 gallon tank Clear again

I was having real algae problems no matter what was used to try and clear it up. The UV light is the only way to go on getting your tank crystal clear and clean. It works highly recommend!

Rated 5 out of 5 stars
By Awesome on Jun 30, 2022

A must have

Before I bought this, My tank would clear up and them come back with green water. I tried everything I knew to get it clear. After 5 days of running the green killing machine my tank was clear. My only regret is not buying this product sooner.

Rated 5 out of 5 stars
By Charity on May 30, 2022

A must have!!

Ok I was real hesitant about spending almost $50 on this product. But my tank had green algae growing on the walls of it and has had for about two years. I changed everything in it I changed all the rock and decorations and even the pump. I had done numerous water changes endless chemicals and even algae eater fish nothing helped. But after I put this light in, scrubbed the sides of a tank with a brush and after one day the tank was looking clearer and after two days the tank is cleaner than it has ever been! This product works so well I plan on buying another one for my other tank. The tank looks brand new! I will never have to fight green algae again.

Rated 5 out of 5 stars
By Janice on Aug 19, 2022

UV filter review

I needed a small unit for a bunch of baby bullfrogs. They are in a shallow tank of about 100 gallons. It keeps the algae in check as well as that pesky virus.