Customer Reviews

Rating: 4.2 of 5 stars 32 Reviews 32 Reviews 4.2 out of 5 Stars

84% Recommend

84% of reviewersrecommend this product

Rating: 4.2 of 5 stars 4.2 / 5

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AA Aquarium Green Killing Machine Clip-On UV System, 3-watt

AA Aquarium Green Killing Machine Clip-On UV System, 3-watt

  • Most Helpful Positive Review

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    A must have

    By Vahn on Apr 29, 2021

    I have been debating writing this review for a while, but I decided to go on with it. First thing you should know about a UV for people leaving 1-star reviews or not getting the results they want, it's very much not for algae problems. It's not for algae on plants, or on the glass. It's main purpose I have been debating writing this review for a while, but I decided to go on with it. First thing you should know about a UV for people leaving 1-star reviews or not getting the results they want, it's very much not for algae problems. It's not for algae on plants, or on the glass. It's main purpose is to pull from the water column and clean that up. I bought a 10g from the dollar/gallon sale in November and for months and months dealt with foggy, milky water then, pea soup, and no matter what I did I couldn't clear it. Leaving it alone never got better, doing water changes only seemed to make it stronger, purigen only made it murky. I hated having to spend more and more on a 10g and the UV was a last ditch resort and I was not trying to spend 40$ on a miracle cure but. I can honestly say this blew me away. It didn't fit quite right on my filter, because I had a very very small filter and I ended up having to take a knife to cut up part of the filter just to get it to clip on, but it was so worth it. I ran it for about a week, and then did a big water change and I can actually see my tank now! I'm not using it anymore but it definitely is part of my maintenance kit under the stand. … more

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  • Most Helpful Critical Review

    Read All 7 Critical Reviews

    Didn't work at all for 20 gal tank

    By Fish on Mar 20, 2021

    I was excited to try this given the excellent reviews, but it didn't work at all to remove green water from my 20 gal tank. Chewy made it easy to return and i got the 9w to see if that works. I've used it for 2 days so far and water seems to be slowly clearing. I have 2 goldfish in my tank plus plants I was excited to try this given the excellent reviews, but it didn't work at all to remove green water from my 20 gal tank. Chewy made it easy to return and i got the 9w to see if that works. I've used it for 2 days so far and water seems to be slowly clearing. I have 2 goldfish in my tank plus plants and 5 snails. … more

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