Gojiny 20pcs Blue Sandstone Cylinder Bubble Stones for Aquarium Aeration - Fish Tank Oxygen Pump Accessories for Freshwater & Saltwater Tanks - Enhance Water Quality & Fish Health

Feature: 1. Made of high quality sandstone material, sturdy, durable and long service life. 2. Good air dispersion and filter, creates bubbles in fish tank while attached to an air pump. 3. It keeps your fish healthy and adds beauty to your aquarium. 4. Increase oxygen levels, reduces carbon dioxide emissions, important instrument to successfully keep fish for respiration process. 5. Can be widely used in a variety of places, perfect accessories for aquarium. Specification: Condition: 100% Brand New Item Type: Bubble Stone Material: Sandstone Color: Blue Suitable for: Aquarium, Fish Tank Quantity: 20PCS Weight: Approx. 145g Single Length: Approx. 3. 9cm/ 1. 54inch Usage Instructions: 1. Connect the bubble stone with the supporting hose and connect the oxygen pump at the other end of the air pipe. 2. Soak this product in water for 15 minutes before use 3. Long time using, such as dirt blocking, bubble reduction, can be taken out to repeated use. Widely Used: 1. Sewage treatment plant aeration oxygen and as a stir to prevent large particles of sediment deposition, and can remove part of the organic matter 2. Fish pond ( aquafarm ) add oxygen to nutrient- rich water body in the environment and oxygenation in biological culture 3. Live fish and seafood are transported oxygenated 4. Aquarium ( purifier ) purification, filtration and water quality ozone sterilization and oxygenation 5. Other processes that require diffused air Package List: 20 x Bubble Stone Package Including Package List: 20 x Bubble Stone