& nbsp; & nbsp; & nbsp; Bubble production: A large number of fine bubbles are created in the aquarium. & nbsp; & nbsp; & nbsp; Non-slip: thanks to the suction cup, the bladder stone adheres firmly to the water tank and does not slip easily. & nbsp; & nbsp; & nbsp; Applicable to: suitable for families, desktop aquariums, ponds, aquariums. & nbsp; & nbsp; & nbsp; Ideal for adding oxygen to your hydroponic system, reducing CO2 and increasing pH. & nbsp; & nbsp; & nbsp; Adding Oxygen: Add oxygen to your hydroponics system, increase oxygen levels, and reduce carbon dioxide emissions. Ultra-dissolved oxygen is very useful for adding oxygen to your hydroponic growth system, increases oxygen levels, reduces CO2 and increases PH levels. This improved porous stone releases the smallest and densest bubbles, causing oxygen to dissolve twice in water. Easy to use 2 The airstone is firmly adsorbed on the tank by the suction cup. Durable, ideal for home, office, aquarium and hydroponic aquariums.