Review on 🐠 ALON Nano Air Pump for Fish Tank - Ultra Quiet USB Aquarium Air Pump with Hanging Buckle and Check Valve by Barbara Evans

When I woke up, my aquarium was silent (the pump is quiet, but I usually hear air bubbles when I'm near the aquarium). The air pump was warm but didn't work. Somehow it came on for 30 minutes and then off again. I replaced the USB block with a phone charger just to test and it's no problem. Now I hope that the good bacteria don't die out before the store opens. I had a gut feeling I needed a boost, but tried to spend a little less money where I could. UPDATE: This may be due to my valve. The new pump I had couldn't pump air at first because the valve was tight. It may have fried my USB air pump.