NICREW Aquarium Air Pump, Nano Silent Mini Oxygen Pump with Check Valve, Ultra Quiet <33 dB Accessories for Nano Fish Tanks

Really good! Very quiet and perfect for my 50L tank using the max version.

Completely silent air pump that about as small as you could need, its not the strongest Airflow but works in my 125l airstone, would love to see this pump in other models for larger tanks and higher Airflow too, the design an silence would make it a massive upgrade to my 5 tanks. I dont mind the noise or bubbles just not droning pumps which product solves! There is no adjustment or dials but it just a plug and play experience. Due to the calmer nature of this pump it make a nice stable stream of bubbles rather than the choas some pump cause! Would definitely buy again for my other smaller tanks though im not sure it would work for anything above 120l ish.

Great Little Air Pump – Highly Recommended This is a great little air pump and I’m very impressed with it. It’s compact, easy to use, and does exactly what it’s supposed to do. One of the best features is how quiet it is — it runs very smoothly and is far more silent than I expected. Overall, it’s excellent value for money and I would definitely recommend it to anyone looking for a reliable, quiet air pump.

Very compact, incredibly quiet. Less than 30db. Im actually not sure how it produces air as it is seemingly sealed. Using a technology not seen in traditional air pumps. It is not very powerful as a consequence but for a small tank it is perfect. Comes with a few bits to get you started as well. It is not adjustable.

Its quiet and very easy to set up. The small size makes it easy to tuck away behind the tank. A good and constant stream of bubbles too.

Great wee airpump, whisper quiet and effective for its size.

It’s doing a great job and so very quiet. Only had it a week so can’t comment on durability

Having had previous Nicrew products I thought this air pump would be the same good quality and when I first started using it was indeed silent and produced a good flow of air but sadly this past week it became really quite noisy then just stopped working, the unit was unplugged and then after 24 hours was plugged back in but is still broken. The unit is very small and comes with a suction cup so you can attach it the outside of the tank, a long length of airline and small round air stone is also supplied, so everything you need to get started. It is sold as a silent air pump which I was skeptical of because all air pumps have motors so a certain amount of noise should be expected however this air pump was indeed silent and the amount of air it produced was very good, sadly the silence lasted around 4 weeks before it started making a lot of noise exactly the same as other small air pumps I have used over the years. I was hoping this product would be around for a while but now I need to find another air pump. I will not be returning it because it is not an expensive item but I would have expected it yo last a bit longer than 4 werks