Description
The airstone create air bubbles for improved oxygenation and gas exchange. Durable: The bubble plate with high temperature made and the fine bubbles can increase oxygen levels, lower CO2 and raise PH, it also can be easily washed for re-use. Strong Compatibility: Round fish tank bubble sand round disk fits for 4mm or 8mm inner diameter tube. High Material: The airstone disk uses finely compressed material and the bubble is small and bubble is concentrated at surface.
