Review on 🐠 AquaMiracle Lithium Battery Powered Portable Aquarium Air Pump: Rechargeable & Versatile for Fish Tanks, Fishing, and Power Outages by Crystal Smith

This pump works great! He does exactly what he is supposed to. The battery activates when the power is cut off and keeps the water in the aquarium aerated. The only inconvenience I've found with mine is that one of the stones has a hole in it where it connects to the pipe (third photo), allowing all the air to escape and preventing proper blowing through the pores. However, the other works fine (second picture). Overall I think this is a very good product at a very good price and I would buy it again for other tanks.