?????????????? & ???????? ????????????????: It is made of quality plastic, these air stone bubblers are non-toxic and durable; they can produce fine bubbles for oxygen.
???????????? & ???????? ????????????: The bubble diffuser air stone can produce a lot of fine air bubbles that help in increasing the oxygen level and reduce the carbon dioxide, keeping fish alive and healthy.
???????? ???? ??????: Air stone disc is corrosion-resistant which is easy to clean; if the pores are clogged after being used for too long, it can be cleaned with a brush.
???????? ???? ?????????? : Soak the stone completely in water for 1 hour before use. And the hose connected to the air pump can be repeatedly plugged and unplugged more than 4 times, which can help the air bubbles to be more uniform.
???????? ???????????????????????? : The Air Stone Disc or bubble diffuser is suitable for hydroponic systems, ponds, fish tanks, freshwater/ saltwater aquariums and other systems.