Cute Bubble Stone
Increase oxygen levels, lower CO2 and raise PH.
Durable, washable and sintered by high temperature.
Creates bubbles in fish tank while attached to an air pump (air pump is not included).
Creates water currents and dazzling underwater scenes.
Green resin, non-toxic, safe to use.
Specifications:
Material: Resin
Size: 11 X 7 X 7cm/4.33 X 2.76"
Color: As shown
Type: A/B