Review on Enhance Fish Tank Oxygenation with Mylivell Quietest Aquarium USB Air Pump: Ultra Silent, High Energy Saving, Complete with Air Stone and Silicone Tube by Bethany Ray

Update 10/28/2020 The pump worked great for 2 1/2 months and then just stopped working. I have sent an email to Mylivell customer service. They responded almost immediately and agreed to send me a replacement pump. Update: 10/27/2020 I bought it on August 6, 2020. Plugged in on arrival and placed in a sponge filter. Today it stopped working. This went on for about 2-1/2 months. Old Review: This pump is just right for a large sponge filter - not too powerful and not too weak in flow. Very quiet. Came with an air stone, about 3ft of hose and the necessary USB/AC adapter with cord. It also has a small carabiner that makes it easy to hang the pump outside the aquarium. I only use this for a week. I will update my review if at any point the pump fails or airflow decreases.