Air Stones Bubble Stones Fit For Aquarium Fish Tank, 0.98 Inch, 10 Pieces

10 pieces. Material: mineral plastic; Color : white. You need an air pump more than 2.5W to run the stone. Size: Approx. 0.390.98 inch (DH). The stone need soaking in the water more then 1 hour when useing. Fit for aquarium fish tank and hydroponics. Fit for inner diameter 3/16(4mm) soft tube. Help to keep fish healthy and adds extra beauty to the aquarium.