Boyu, Carborundum Round Cylindrical Air Stone, 37x36x6 mm

Long Cylindrical Air Stone Diffuse air into the tank and provide oxygen for fish to breathe A necessity to have around your aquarium These are sturdy and durable Have high dissolved oxygen rate Create even and tiny bubbles rather than a limited number of large ones.

Round Cylindrical Air Stone Air stone round and cylindrical Diffuse air into the tank and provide oxygen for fish to breathe A necessity to have around your aquarium These are sturdy and durable Have high dissolved oxygen rate Create even and tiny bubbles rather than a limited number of large ones.