[Safety Material]: The air stone is made of high quality non-toxic mineral materials, very safe, sturdy and durable, can produce even and tiny bubbles, and has high dissolved oxygen . [Continuous Oxygen Supply]: The aquarium bubble stone can continuously supply oxygen to your fish tank efficiently and smoothly. If you are an aquarium enthusiast, the air stone is a must-have for your aquarium, pond and fish tank. Your fish breathe better. [Easy to clean]: If the aquarium bubble stones are covered or blocked by algae and impurities, you just need to clean them with a brush, which is very convenient and can be used for a long time. It is recommended to clean it once a month to play a great role. [Various Uses] These air stones can be used in aquariums, ponds, aquariums, freshwater, saltwater, hydroponic aquariums or fish farms. The small dense bubbles produced by the air stone can not only supply fish oxygen, but also create your beautiful aquarium. feature: Made from high quality
