【Secure material】: The air stone is made of high quality non-toxic mineral material, very safe, robust and durable, which can produce even and tiny bubbles and has a high oxygen dissolution rate. 【continue To provide oxygen】: The aquarium bubbles can continue to provide oxygen efficiently and gently into your aquarium.If you are an aquatic animal lover, the air stone is a must for your aquarium, your pond and your aquarium. Your fish breathe better. 【Easy to clean】: If the aquarium air bubbles stone is covered or blocked by algae and impurities, you can just clean it with a brush, very pratique.Vous can use it for longtemps.Nous suggest you clean a times a month to make a great effect. 【widely application】 These air stones can be used in aquariums, ponds, aquariums, freshwater, salt water aquariums, Hydroponic aquariums or in aquaculture farms.The small and dense bubbles produced by air stones can not only provide oxygen for fish, but create your magnificent aquarium. 【Size of the air
