Safe Material: This aquarium air stone can be cleaned repeatedly, long term and the safe material keeps the fish healthy and active. The bubble stone can be easily concealed and save space with its slim and compact design.High Dissolved Oxygen: Fine bubbles increase the oxygen dissolution rate in water, it's a great way to add oxygen, reduce CO2 levels and keep fish healthy.Easy to use: the aquarium air diffuser with 2 suction cups allows the air stone to be firmly adsorbed on the tank. Durable, ideal for home, office aquariums, aquariums and hydroponic nutrient tanks.Function: This aquarium air bubble stone can silently create a very dense cloud of small bubbles. when the bubbles burst in the water, the sound is quieter. Create a lot of fine bubbles in the aquarium, create a dazzling curtain effect.Produce dense small bubbles silently: This aquarium air bubble stone can create a very dense cloud of small bubbles silently. When the bubbles burst in the water, the sound is quieter. Create a lot of fine bubbles in the aquarium, create a dazzling curtain effect.