6 Pcs Aquarium Air Diffuser Oxygen Bubble Stone for Pond and Aquarium

Durable Material The aquarium air ball is made from high temperature resistant sand and gravel, sturdy and non-toxic. It can be safely placed in your ponds and aquariums. Suitable for connecting 4 mm/8 mm tubes. Easy to Clean The aquarium vent is easy and convenient to clean, just brush the surfaces every month and clean it regularly to extend its service life. Stable Bubbles The aquarium air stone has a flat design with high density of air holes to ensure the uniformity and stability of the diffuser bubbles. Increased Oxygen Content The bubble stone for ponds increases the oxygen content of the aquarium water, reducing the CO2 concentration and keeping fish and shrimp alive. Wide Range of Applications The air stone balls are ideal for use in ponds, aquariums, wind ponds, fish tanks, fish tanks, aquacultures, etc.