A perfect air pump to add water movement and oxygen to the aquarium to improve water health and provide your fish with a comfortable environment, improving the overall health of your fish. the aquarium. Made of high quality ABS, strong and durable. Technologically advanced design ensures quiet and smooth operation. Powered by solar energy, no battery or electricity, energy efficient and environmentally friendly. High capacity battery Built-in 1800mAh, it can work for 22 hours after Recharge. Powerful, high-efficiency pumps meet most aquarium air requirements and are designed to provide years of reliable, trouble-free use.