[PureZone] Air Pump Sand Stone Aquarium Oxygen Pump Tank Aerator Pump Stone Bubble Bar

Features: 100 new and high quality. Practical and durable home using product. Increase oxygen levels, lower CO2 and raise pH. It is an important instrument to successfully keep aquatic fish for respiration process. Durable, washable and sintered by high temperature, different from other air stones. Creates bubbles in fish tank while attached to an air pump. Creates water currents and dazzling underwater scenes. Easy and convenient to use, perfect accessories for better life. Specifications: Tips: manual measurement has some errors, please purchase carefully. 1: when you receive the bubble bar, first check whether the goods are damaged. If there is any problem with the goods, please contact our customer service to solve it. 2: the use of the bubble bar to lay, sand side up, to maintain uniform air, such as gas bar rock oblique will cause uneven or no air bubble, etc. 3: after the connection, the trachea cannot be significantly bent and folded to prevent air from being pushed into the ai