AQUANEAT 4x2 inch Aquarium Air Stones 10pcs, Aerator Diffuser,Air Stones for Aquariums,Fish Tanks,Pond and Hydroponics

"Product description Large Air Stone Cylinder Bubble stones fired at high temperatures have uniform and delicate pores, which can be reused and have a long lifespan.

The bubbles are delicate and not easy to block, with many and dense bubbles.

Suitable for use in freshwater environments, increasing the oxygen content in the water and creating a safe living environment for fish, such as aquariums and fish tanks."