QANVEE Aquarium Sponge Filter Bubbler with Ultra Quiet Water Pump and Ceramic Balls for Fish Shrimp Breeding Tank (Filter S(6-30 Gallon))

Work Without An Air Pump, Ultra quiet and more efficient than other sponge filter USB Driven 5V Safety Low Voltage and 2W Energy Saving,Simply plug in USB adapter and you get a Bio sponge filter and a "Air pump" Air intake adjustable to creat lots of fine bubbles and reduce bubbling sounds and will work super quiet when you do so. Oxygen rich water combined with strong good-bacIterias handle large amounts of ammonia and nitrite compare to other type of filter Suitable for small and large fish planted tanks,shrimp and breeding tanks etc