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.

The pump itself is excellent. It's surprisingly small but shifts plenty of air for my 70L tank and is basically silent when running. It also comes with tubing, a valve and a one-way valve to help prevent water flowing back, making it great value for money. The only disappointment is the included airstone. Mine only produces bubbles from the top rather than across the whole stone, and the bubbles are noticeably noisy. I'm not sure if mine is defective or if that's just how it performs. Overall, I'm very happy with the pump and it does exactly what I need, but I'll be replacing the airstone with a better one.

This is an excellent little airpump for my 30 litre aquarium. I wouldn't call it silent but it's certainly not noisy. Installation takes seconds and the air tube is very discrete if positioned behind the taller plants. I've ordered another one for my second aquarium.

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.

5 stars for this Excellent quiet nano pump one in my living room and now in my bedroom, all I ever hear is a slight gentle humming , highly recommended

To give additional air to aquarium. Works well for it's size. Low amount of electricity used and very quiet.

Fantastic little pump until it stopped working only 4 months from purchases 🫤 i can't recommend this pump.