Review on Portable USB Charging Air Pump for Aquariums & Fishing - Great for Fish Tank, Fish Transportation, Freshwater & Marine Aquariums, Outdoor Fishing by Andrea Joint

It's amazing! We're on the road, traveling in our van and our fancy goldfish. They live in a 20 gallon hexagonal acrylic tank. We thrive on solar power and I charge it with my Yeti battery pack and it starts working when the power source fails. Its very simple red light means the pump is running, or a green light means it's running on battery power. My fish never separate from their bladder stones. This setup allows me to turn off the solar system enough to run its filter. Running a traditional plug-in air pump will drain the main battery very quickly. This pump has been running 24/7 with no problems for a month now. It has 2 air ports but I only use 1 port.