NICREW Nano Silent Mini Aquarium Air Pump, <33 dB, for Tanks up to 40 L

Tiny but great, we are using it with a sponge filter and now my daughter’s fish are happier.The noise is nearly noticeable, a small buzzing, it’s a lot quieter than a small desktop fan. Small and compact, modern looking. We stuck it at the back of the tank as that’s where me daughter wanted it, but would not look unsightly in view. Can’t adjust the flow, but the sponge filter came with an adjuster.So far so good

This is a great little device. It sticks to the glass on the outside of the fish tank and blows air through a tube into the water brick. Works well and makes very little noise. The best one I have bought. Would recommend to anyone with a small tank. The only downside is the length of the power cable. It is short, so may need an extension lead if it has to go a long way to the power. It was a good price and I would buy again when this eventually stops working.

Bought this for my granddaughters small sea monkey tank, only use it twice a day to aerate the water but it’s so quiet when running that it’s only the bubbles from the tubing that gives the game away, can’t speak for the longevity of the unit but if you need something quiet then this does the trick. Recommended 👍

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.

Amazing, super quite the only noise is the bubbles it makes, great quality I have two and have worked a charm in my tanks!

Amazing. Very quiet and does a good job, looks good too as I’ve stuck it to the side of my tank.

The quietest air pump I have ever owned. The smallest model is enough to power one sponge filter and one air stone in a 40 cm-tall tank.

Not silent at all. Followed the instructions to a T, had it running for all of a few hours before I had to turn it off. (see video - all that noise is from the air pump). Now put it on a plug with a timer so it only runs at night.Would ideally return this one but had to cut the tubing to work with my tank & don’t want it to go to waste.Rather invest in one with an adjustable flow valve or another brand that’s quieter.