Review on hygger Ultra Silent 1.5W Fish Bowl Aquarium Mini Air Pump Kit - Powerfully Oxygenate 0.5-15 Gallon Tanks with AC 110V/60HZ by Cara Ulfass

Comes with a double suction cup so it can be held on the back of the aquarium. I liked this feature. Doesn't work because the suction cup is deformed and too thin. The pump is very quiet. Performance is modest, especially with the one-way valve, but works very well for my application where I didn't want a lot of bubbles. But since I can't suck it above the waterline, a one-sided trap is required. Does it work with one of those tiny $4 filters? That's my attitude. And I doubt there are enough bubbles to draw attention. I will update this review if I find anything different. So good. but in the right scenarios.