Keep your aquarium water clear and your finned friends healthy with the AA Aquarium Green Killing Machine UV System. Quickly and easily convert your existing waterfall-style filter into a powerful UV filtration system with the convenient clip-on design which installs in under a minute and creates a clean and clear environment for either tropical or marine fish communities. The 3-watt UV bulb is perfect for clearing up green discoloration in tank water, helps to remove cloudiness in fish tanks that are up to 20 gallons in size. And the cleaning power lasts for up to 9 months of continuous use in most aquariums!
Works in both salt and fresh water fish tanks by converting most waterfall-style filters into UV filtration systems.
Perfect for getting crystal clear water and removing green discoloration and cloudiness in aquariums up to 20 gallons.
Quickly clears up algae blooms and ich infestations, and removes bacteria and other pathogens with the power of UV light.
Clip-on design installs in under a minute without any tools and has been UL tested for safety and effectiveness.
Sealed housing unit prevents leaks and allows 3-watt bulb to last for up to 9 months of continuous cleaning power.
Unplug the cord before moving or servicing this appliance.
I bought this for my 10-gallon aquarium that was green with algae. It was a very simple setup, but i saw no indication of light coming from unit at all. I thought it might be very well encased and perhaps that's why I didn't see any light.
However, after 3 days, there was absolutely NO difference in my aquarium's water. I don't believe the light came on at all.
This is in no way Chewy's fault, it's just a faulty unit and I happened to get it. I went on Chewy's live chat and the customer service rep took care of the problem in less than 5 minutes, returning my money. This is the first time I've ever had any problem with anything I've gotten from Chewy.
on Jan 4, 2022
I was a bit skeptical if this device would clear up my 10 gallon tank that had a sudden surge in algea bloom. After 3-4 days of constant running I supplemented with a dose of cloudy water clearer (which had done nothing before I bought this item). The water cleared almost immediately and is crystal clear now. I now run this item periodically to maintain algea levels.
Did it’s job
on Nov 24, 2021
It took about two good weeks, but this filter did an amazing job of giving me back my beautiful fish tank. I’ve been struggling with an algae issue for a while and was becoming frustrated. When I heard about a UV filter, I had to try it. I become a little discouraged at first because I didn’t see results right away, but after about 2 good weeks, my tank is once again clear, and I can see my beautiful fish!
So much better than algaecide and scraping
on Dec 15, 2021
My aquarium was embarrassingly green. I'm sorry to say it was green to the point I couldn't be sure where the fish were. But reaching into a fish tank up to my armpits to clean the glass is not a highlight of my life. I turned it on and within a day the tank was practically clean. And turning a unit on every so often is so much nicer than algaecide and scraping!
on Dec 12, 2021
WonderfulI was about to give up on this product but it really came through by seven days I saw a big difference the 10th day my water was crystal clear
Unfortunately doesn't seem to work
on Oct 12, 2021top250Contributor
I had high hopes through reading about this product. But after a week I can hardly notice a difference in my ten gallon tank. It may be 10% clearer...maybe? It's not a shocking difference that I can justify recommending this. I'm giving it two stars since it sort of did something and it was easy to install.
Clip-on UV system
on Dec 3, 2021
The AA Aquarium Green Killing Machine Clip-on UV System worked great for about 2.5 months. I have noticed a big decrease in the clarity of the water since.
Worked well, great customer service
on Aug 14, 2021
The first one I ordered didn't show any results over the course of 2 weeks. After messaging customer support, a new one was sent less than an hour later without any fees. After installing, my algae was cleared completely after 3 days, although the cloudy water was not cleared since it's leftover bacteria lingering in the water. After some self treatment of my water it's good as new, this product was very affective and the customer service was above and beyond.
No more green gross water
on Dec 18, 2021
Works great. No more green water. Can see the fish. Fits easy on filter.
Green killing machine works!
on Jun 24, 2021
I'd been having trouble keeping clear water in my aquarium even though my levels were good so I decided to try the green killing machine and it really worked! Within a day and a half, my tank was crystal clear and has been since using it. The instructions recommended using it a couple of hours every day for follow up after getting clear water but I haven't even had to do that. It's amazing!