Internal Green Water Killer Aquarium Filter Tank U-V Pump
$34.99
Price: $34.99
(as of Oct 16, 2025 12:45:17 UTC – Details)
From the brand
PET PRODUCTS FROM COODIA
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Package Dimensions : 12.35 x 5.59 x 3.43 inches; 1.63 Pounds
Item model number : OZJONG
Date First Available : July 10, 2019
Manufacturer : COODIA
ASIN : B07V26V5MS
Best Sellers Rank: #7,672 in Pet Supplies (See Top 100 in Pet Supplies) #15 in Aquarium Filters
Customer Reviews: 4.2 4.2 out of 5 stars 7,218 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Turns green water to clear in 3 to 7 days.
Suitable for Saltwater and Freshwater.
Clean up to 75 gallons tank
Built in 5 watt water pump
Customers say
Customers find the water pump effective at clearing green water and appreciate its fast functionality, with one noting it’s shockingly cheap for a good filter. The product is easy to set up and install, and customers consider it well worth the price. However, the bulb lifespan is concerning, with multiple customers reporting it died within a couple of months. Moreover, the tank appearance receives mixed feedback – while some say it looks amazing, others find it ugly in the tank. Additionally, the size is problematic, with customers noting it’s too large for 5-gallon tanks.
D.A.. –
Blown Away By The Results!! Green Water Out, Crystal Clear Water IN!
This is a miracle pump. I’ve had aquariums on and off for the last 30 years and never have I seen this kind of algae bloom. I couldn’t get rid of it. It was actually much worse than the “day 1” photo depicts. At the time I took that photo I had removed almost all of the decor due to having to do 50% water changes every 2 days. It was ridiculous. I didn’t want to add chemicals that may or may not have harmed the poor fish that were already surrounded by horrible green algae ridden water. I did a lot of research online and this is the pump that was most recommended. After seeing a lot of photo reviews that greatly resembled my very green aquarium, I took a chance on it. I was extremely skeptical that a pump would eliminate the constant green water, but to my surprise it actually worked! I really wanted to do this review because nobody has mentioned using this pump for smaller aquariums. The listing for this particular pump says “for aquariums up to 75 gallons”, it doesn’t give specifics for small tanks; but I took a chance and tried it anyway as a last resort. My aquarium is a 5 gallon aquarium. They’re very common in size and even 5 gallon aquariums can be subjected to the green water conundrum. This pump, even though it doesn’t fit in my aquarium upright, it still fits lying down and is fully submerged. On day 1, I couldn’t even see my fish unless they were at the front of the aquarium directly under the light. Day 2 wasn’t really much different. I didn’t think this pump would actually work, but by day three I could not only see the fish but I could also make out the heater on the back wall. My aquarium was clear enough by day 4 that I started moving my other aquarium decor back in. And on day 5 my aquarium was crystal clear. No green water, no traces of green water, and I can see everything in the aquarium including the wallpaper on the back wall. There were no chemicals added. I used this pump in my 5 gallon aquarium for 5 days and my water is more clear than it has been since this aquarium was established and cycled for the very first time. It’s like a brand new aquarium and my fish are super happy. I don’t know how or why this pump works, but it’s pure magic. Having said that, this pump comes fully assembled. It includes oxygen tubing for aeration if you choose to do so. I didn’t need the extra aeration so I didn’t install that piece. It can be used 4-8 hours a day as the instructions suggest. I personally used this pump for 4 hours during the morning and again for 3-4 hours in the evening to get the results that I did. The results may vary given the size of your aquarium. I plan to leave this pump where it is for now. The instructions say once the water is clear you can reduce the time, so I’ll leave it in the aquarium and gradually reduce the amount of time I use it. I did a 30% water change on day 5, AFTER that photo was taken and it was just to clean the gravel and debris from the standard aquarium filter. This green water killer pump is amazing and the results really do speak for themselves. I would have gladly spent twice as much money for the results that I got! It’s truly unbelievable!! My fish are happy and their environment is healthy. I’d consider that a win! Highly recommend!!
Anthony Siller –
AMAZING!! Please read.
Let me start by saying this is I believe my first review and Iâm doing it because how amazing this product is and to also help people prepare themselves to use this product as I feel I may have made some mistakes but everything worked out great for me. If you have green or milky water and have the funds available do yourself a favor and get this. After tons of trial and error and research I believe this is the best and most natural beneficial way to clear an algae bloom or bacteria bloom all though i usually would just let a bacteria bloom play out. I wanted to say this to help some people with what i realized once i got to this point. I cleaned my filter took everything apart added a sponge filter would change ~30% water everyday adding polyfilter everything. Last day I took all ornaments out gave a deep gravel cleaning and still next day green cloudy water. I wanted to tell you guys this because in the process I was removing so much beneficial bacteria and changing my water chemistry so much that I couldâve caused an ammonia spike or crashed my cycle. You can always add beneficial bacteria but thatâs the thing that will be free swimming live bacteria which will end up being killed through the sterilizer where as all the b.b you have in your tank on the glass ornaments gravel will not be harmed. What I ended up doing to play it safe is I would add some bacteria right on my filter and turn off the uv pump for the night just in case. Let me say within 3 days looking so much better 5 days really nice and now one week it looks like glass like absolutely beautiful water my parameters are all in great shape. This is your go to even though it may vary it will work be patient as you see my review and so many others saying it works it does. You can now see the blue light easily through both sides of device so those problems are gone only thing Iâll say it this thing is big it does take up quite a bit of room but I plan on taking out soon and seeing how the tank reacts and use again as need be but would keep in if needed regardless of size due to how great it works. Main point itâs just green water if your fish are alive and healthy thatâs most important. Donât go crazy tearing your tank apart. Give it a normal cleaning with gravel vac check filters change if need be as your usual routine and buy this thing plug it in and observe your tank itâs going to work and your fish will be happy and healthy. In this time research uv sterilizers and see if you want to have one 24/7 in your tank there seem to be many benefits but if you need your water cleared up looking beautiful this is the product and a great price.
Mrs s wright –
The thing they donât tell you is that itâs a 2 pin plug which I am struggling to get hold of and itâs not a two pin that they use in Spain itâs a US 2 pin
Maria Guadalupe Lopez Ocampo –
Muy recomendable, cumple con la función
L. Robertson-Card –
Product looks great but I wouldn’t risk plugging it in as it does not appear to be dual voltage. Please include the voltage rating on the website and stop selling this in the UK before you cause an electrical fire. A stepdown converter will cost as much as this product and be noisy. The actual component looks good I just dont think Amazon should sell it in the UK.