ITEM NAME:Aquarium Volcano Shape&Air Bubble Stone Oxygen Pump Fish Tank Ornament Decor OZ #aucsearchbutton #aucsearchbutton:hover { cursor: pointer;.Increase oxygen levels, lower CO2 and raise PH. Creates bubbles in fish tank while attached to an air pump(air pump is not included). 1Pc x air bubble stone (no tubes). And due to the difference between different monitors, the picture may not reflect the actual color of the item.
