Chialstar Aquarium Air Pump Quietest Super Energy Saving 1.0W 15 Gallon Aquarium Pump for Fish Tank Oxygen Pump with Air Big Stone and Silicone Air Tube

It's been a great addition to my 5.5 gallon, glass fish tank. It's extremely quiet and it was very easy to setup. Because of the way I setup my fish tank area, it's out of the way, yet easily accessible and I'm able to see if something's wrong with it or the tubing. I didn't think I'd need one for such a small fish tank but it's really helping out my filter by circulating the water from the opposite end. Adding live plants or shrimp is now more of a possibility. I'm impressed and happy with it and my fish has been investigating it and he doesn't seem too upset with the change in the water circulation. Great quality, I recommend it!

So I like the pump, it's actually really quiet. The bubbles are louder than the pump. I am using it for hydroponics in my 2.6L Aerogarden Harvest tank to supply extra oxygen to my plant roots. Pros: - quiet - good for a very small tank - low wattage Cons: - the suction cup on the back of the pump already fell off my tank a few times (installed today), it doesn't seem too strong. We'll see how it goes. EDIT: I wiped the suction cup with some water and applied it again, and now it's sticking good. Something about the water helps it stick. - my kit didn't come with an air stone. good thing I had one on hand, but the seller should have better quality control. Summary: If it weren't for the missing air stone I would have given 5 stars but can't give 5 when it's missing parts.

Mine came in the mail with a minor chip on the bottom of the line where the Stone was attached. I used it for MONTHS and nothing has happened. The suction worked well! The noise it gave off was as minimal as a bubbler is... it produces A LOT of little bubbles and definitely provides oxygen in the tank. The only downfall was... my suction cup wouldn’t stick long so I ended up tanking it to the tank... this did nothing to the pump.

Had an issue with the first one breaking but their customer service is excellent. Sent a new one that is intact and working great! Very quiet and strong for the size.👍

It's small and it works, but it isn't that quiet. Maybe I got a bad one?

This is a great low energy air pump. It works fantastically with a small sponge filter. However, I tried to use it with a corner filter, a small one with sponge and charcoal. With the corner filter this pump definitely got loud on occasion. I would say the noise coming from it tended to fluctuate. I noticed most of the noise from it was carrying through the bubbles/water. The machine itself isn’t that loud, but they bubbles kindof amplify whatever fluctuations are happening in the air output. I’m super sensitive to changing noise/ a light sleeper, and there were nights where I wanted to unplug the thing. I finally switched it with a noisier but constant air filter. Then I tried it with a sponge only, and it was much better.

I finally found a quiet pump! I work at home and I have a beta tank next to my desk. The pump I was using was quite loud and although I could ignore it most of the time, when I did pay attention, it annoyed me. This little pump is super quiet. The stone is a bit large, so I may opt to purchase a smaller one since my tank is not that big. My Beta "Val" was hiding and didn't want to be put on Amazon, but I know he will love the silence as well. I would recommend this if you have a tank at least 1 gallon and up.

I will be returning. TOO LOUD! The pump itself is quiet but the stone makes a vibration buzz combined with blowing air bubbles noise. It is so bothersome we cant watch tv if its on. I was so disappointed as so many other reviews raved about hiw quiet it is!