The surface of the air stone is super smooth, air holes are super tiny and uniformly distributed on the disc, specially designed to produce micro bubbles, can be used for oxygen and CO2 diffusing under water
Durable & washable. Sturdy and non-toxic material is Safe to your fish.
Please soak the air stone in water for about 30 minutes before usage.
Remember that any air stone will need to be replaced every few months as they get clogged with dust and algae.
