About This

• 10 pieces. Material: mineral, plastic; Color : white. You need an air pump more than 2.5W to run the stone.
• Size: Approx. 0.39*0.98 inch (D*H). 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.