AA Aquarium Green Killing Machine 24W Internal UV for Aquariums up to 120Ga

AA Aquarium Green Killing Machine 24W Internal UV for Aquariums up to 120Ga removed from the wishlist

Description

Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.

The GKM24W Internal UV System with Power Head is for aquariums up to 120 gallons.

- Helps keep your aquarium water crystal clear & reduce water changes
- The GKM24W allows water flow in direct contact with the UV lamp, making it extremely efficient
- Fast and easy installation, takes only 5 minutes
- All GKM products are manufactured in an EPA Registered Establishment
- After assembled approx. dimension 4" x 4" x 17" long. LED signals need for a UV Bulb replacement, easy change without tools
- Complete set includes: Water pump, Sealed UV bulb, Control Box, Adaptor. UL listed.

Specifications

SKU	1237039
Primary Brand	AA Aquarium
Days to Ship	Ships Next Business Day

Additional Features

Primary Color	Black
Personalized Item flag	No
Size	Regular

Item Dimensions

Length	15.8 IN
Height	8 IN
Width	3.5 IN

Assembly Directions: (1). Connect the pump and the UV Lamp Assembly with the elbow. (2). Submerse the assembly in tank for 30s to allow air bubbles to escape. (3) Submerse the UV lamp assembly and the pump completely in the aquarium and attach to the inside of the aquarium with the included suction cups. (4). Connect to the control box and transformer. Please read instruction booklet inside package. To maximize UV bulb life, we recommend to use GKM when the tank is with green water problem, switch off when water becomes clean or turn it on 8 hours per day.

Reviews

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5 stars

153

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1 stars

Overall Rating

4.4

106 out of 198 (54%) reviewers recommend this product

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Most Helpful Favorable Review

Works amazingly!!

Avlisjacire

9 years ago

Bought this about two weeks ago and I am so glad we did. Our Aquarium was bright...

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45 PEOPLE FOUND THIS HELPFUL

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Most Helpful Critical Review

Dosen't last long

Stargazer32

9 years ago

I have bought 2 of these with the same results. They worked good for about a 2-3...

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46 PEOPLE FOUND THIS HELPFUL

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Rating

1 - 8 of 140 Reviews

Most Recent

58 Ratings-Only Reviews

I bought this item two weeks ago. My 55 gallon aquarium had a green algae bloom. The tank was green. This cleared up my tank in less than a week. Works great! Highly Recommend.

Yes, I recommend this product.

Helpful?

I know there expensive but they work really well I can always tell when my unit it working well the water is crystal clear

Yes, I recommend this product.

Helpful?

I purchased this on 4/18/25 it is now 7/12/25 Bulb light already says bulb is burned out. What a short amount of time to last. The the other this is bulb can only be replaced as a sealed unit. Can't just replace bulb so is very expensive at 46 dollars what a joke.do not get this product unless you have money to burn for bulb sealed unit replacements which is almost half the cost of whole product new

No, I do not recommend this product.

Helpful?

Easy to set up, appears to be functioning appropriately. Has been in my tank 4 days with absolutely no change in green water.

No, I do not recommend this product.

Helpful?

I was to the point I thought I was going to have to get rid of my tank. With turtles I couldn’t find very many options to get rid of the algae bloom. Water changes weren’t working. It just kept getting worse and worse and worse. It was very depressing to look at in a last ditch effort. I took one more search online and was so lucky to come across the green killing machine I thought the price was a little high, but was willing to take the risk if it really would get rid of the algae bloom. I’m so glad I did. The price is completely fair after seeing how the product performs within less than a week my tank went from murky green and depressing to crystal clear and beautiful. I highly recommend this product to anyone that is having difficulty with algae bloom in their tank.

Yes, I recommend this product.

Helpful?

It arrived within the time frame. I have used this product for both my 55 gallons aquarium tanks for decades and it absolutely works, My tank is crystal clean when I change the light, wished it would last longer than 6 months, although a couple of times it lasted almost a year.

No, I do not recommend this product.

Helpful?

Lost all hope on getting the algae out of the tank but took a chance on the uv filter and it paid off

Yes, I recommend this product.

Helpful?

Wowzer! Bought this yesterday and already my pea soup in my 75-gallon saltwater aquarium is all but gone. Works as advertised. Decent price.

Yes, I recommend this product.

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1 - 8 of 140 Reviews

Questions

1 - 10 of 14 Questions

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4 months ago

What is the flow rate on this unit?

1 year ago

Will this work to help clear up a Saltwater marine parasite outbreak, like Ich, Velvet, Flukes, etc.?

2 years ago

Anyone have an issue with it heating up your tank? I installed one yesterday and my temp increased 3 degrees in less than 2 hours. I unplugged it and am considering returning it. Temps returning to normal.

2 years ago
Hi, what the size of aquarium? The GKM have some heat when the UV bulb turned on but this little heat can not change 3 degree. For after sales service you can contact AA Aquarium email info@aa-aquarium.com, or toll free 877-720-2227

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3 years ago

Can this be used in a turtle tank?

3 years ago
According to how big the turtle tank is it takes up some room on my 100 gallon fish tank I see no real reason why you wouldn’t be able to it works pretty well for me but might require some more cleaning with the spong on it because turtles can put out a lot more waste than the fish will

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3 years ago

Does have a window or something so I can see the light is still working? How do I know the bulb went out?

3 years ago
There is a light on the power transformer which is for the light. If it is green, the light is suppose to be ok. But the light will degrade over time (about 6 months). The green light will still be green, but the light will not be cleaning well any longer. You than have to replace the bulb.

Helpful?

3 years ago

Hi Will the green machine get rid of mold?

4 years ago

Will this affect my plecos food source or just the water algea?

4 years ago
Affects free floating algae ‘algae blooms’, don’t bother with the big name brands and just order a cheap one you’d be lucky if this lasted longer than 3 months.

Helpful?

4 years ago

Can I use this in a salt water tank?

4 years ago
Yes, you can!

Helpful?

4 years ago

What can I do to get a faulty bulb replaced

4 years ago
I had a faulty control box and contacted the manufacturer. They were very helpful and replaced it for me.

Helpful?

4 years ago

How long is the power cord?

4 years ago
It’s bout normal length cord, as any filter cord or thermometer cord, I use an long surge protector to connect my many filters and stuff at once on my 70 gallon fish tank.

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AA Aquarium Green Killing Machine 24W Internal UV for Aquariums up to 120Ga

AA Aquarium Green Killing Machine 24W Internal UV for Aquariums up to 120Ga

Description

Specifications

Additional Features

Item Dimensions

Reviews

Rating Snapshot

Overall Rating

Review this Product

Works amazingly!!

Dosen't last long

Customer Images

Filter Reviews

58 Ratings-Only Reviews

Works Great

Good product

Inconvenient and costly

Didnt work

Audi bloom doom done

Great Product

Works great

Wowzer! What a unit!

Questions

What is the flow rate on this unit?

Will this work to help clear up a Saltwater marine parasite outbreak, like Ich, Velvet, Flukes, etc.?

Anyone have an issue with it heating up your tank? I installed one yesterday and my temp increased 3 degrees in less than 2 hours. I unplugged it and am considering returning it. Temps returning to normal.

Can this be used in a turtle tank?

Does have a window or something so I can see the light is still working? How do I know the bulb went out?

Hi Will the green machine get rid of mold?

Will this affect my plecos food source or just the water algea?

Can I use this in a salt water tank?

What can I do to get a faulty bulb replaced

How long is the power cord?