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Shayne
Reviewed in the United States on March 17, 2025
Very happy with this.I've never had an air pump this completely quiet. It's sitting on a wooden shelf, but there's no sound at all that can be heard over the sound of the bubbles it's creating.The tubes it comes with are nice and long. They easily reached the water from the shelf the pump is sitting on.I'm using the air stones that it came with and they release a lot of bubbles in the water. Plus, I rarely turn it all the way up.
Jay
Reviewed in the United States on March 14, 2025
Great little pump so far very quiet works well so far so good I’m almost a week in with it
Jimmy James
Reviewed in the United States on January 8, 2025
I was super happy after making all the connections on this pump. After a preliminary hook up, I was able to dial the pump dial back down to almost the point of not hearing it, and this pump was still producing a lot more air in the filter section of my tank than I was previously getting with my old air pump. What I am mostly hearing is the sound of the small air bubbles hitting the surface, much more than I am hearing the pump. Once i was sure it was all good, I finalized and permanently installed the oumo and placed it in the storage area under the tank stand. Once the door was closed, the pump cannot be heard at all. My old pump could be heard in the next room over from inside the stand, so this is a vast improvement.The pump is a great value. Why? Because it’s not just quiet and cool looking, it pushes enough air that it can cover your aeration needs for multiple tanks at once. I will eventually be able to run my other 2 smaller reef tanks from this single pump once I have obtained the connectors and the additional lengths of hose that I need.Overall this is a great pump, good value and does a great job… only time will tell on longevity, but if anything changes I’ll be sure to come back and update my review.
K R
Reviewed in the United States on January 11, 2025
Super quite!! The same or even quieter than my Tetra 5 gallon air pump, while moving so much more air. I honestly wasn’t expecting it to be as quite as it is, since I haven't heard of this key-smash brand, but it is a good air pump.Two outlets, but appear to be independent of each other. The air-stones included do a good job, and don’t feel super cheap/low quality. They aren’t the nicest, but I have seen far worse, and am happy with the ones provided.Right now I have this on my 125, with one airstone in the DIY algae scrubber* and the other in the middle back of the tank just making bubbles. It looks nice. I may try finer air stone disk, or perhaps a bar, but I am also dealing with some black beard algae and don’t want to spend on something that is likely going to get caked by BBA. It helps create some water movement in that area, since it’s normally a still/dead zone waterwise.This would be great for a large sponge filter, or even two stacked on each other. Should also be able to handle a water lift pipe, though personally I have never made/used one of those.With some t-connectors, you could use this to run air driven filters in quite a few small tanks, making it ideal for a fish rack setup.*(Piece of coroplast to section of the end of the tank with slits at bottom and weir at top. The plastic canvas in the space between coroplast and glass. Set light right against glass, run 24/7. Add air stone to circulate water and give the algae some more oxygen)
Chuck
Reviewed in the United States on January 11, 2025
This works pretty well. I like that I can adjust how much oxygen I can have in the tank at any time. At night, I lower it slightly. During the day it's up and the fish and snails like to play in the bubbles. The snails purposely underwater surf. It's pretty interesting to watch.The pump seems to have a strong motor. I'm expecting it to last a while. It's fairly quiet. I can still hear it humming. But, it's not distracting or anything.The only thing I don't like about it, is the tubing. I would have preferred clear tubing. But the white isn't terrible looking.
Kaley Lathrop
Reviewed in the United States on January 10, 2025
This air pump has completely exceeded my expectations—it’s by far the best one I’ve ever owned! The first thing I noticed was how incredibly quiet it is. Even in a silent room, I can barely hear it running, which is such a relief compared to the noisy pumps I’ve dealt with in the past. It’s truly a game-changer, especially for someone like me who has aquariums in my living space.What really sets this air pump apart is its two outputs, which make it so versatile. I use it to power two tanks simultaneously with T-splitters, and it handles the job perfectly. The airflow is strong and consistent, ensuring excellent aeration in both tanks without any loss of performance. My fish seem much more active and healthy, and I’ve noticed an overall improvement in water clarity as well.The build quality is outstanding—it feels solid and durable, and I have no doubt it will last a long time. It’s compact and doesn’t take up much space, yet it packs a lot of power for its size. Setting it up was a breeze, and once it’s running, it requires virtually no maintenance. On top of that, it’s energy-efficient, which is a great bonus for someone like me who runs multiple tanks 24/7.If you’re looking for a reliable, silent, and efficient air pump that can handle multiple tanks with ease, I can’t recommend this one enough. It’s been a flawless addition to my aquarium setup, and I’m thrilled with the performance. Whether you’re a beginner or a seasoned aquarist, this pump is worth every penny!
Jamie
Reviewed in the United States on December 23, 2024
It can put out tons of air but it's super loud. I specifically bought it for its supposed low noise level.
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