[DETAIL] 35/50/80/10mm Bubble Stone Aerator for Aquarium Fish Tank Pump Hydroponic Oxygen Plate Mini Air Pump Accessories Features: Ozone aerated stone, bubble stone, using super hard gold steel sand, after high temperature sintering, good gas diffusion, good filterability, ozone resistance, corrosion. Increase oxygen levels, lower CO2 and raise PH, creates water currents It is an important instrument to successfully keep aquatic fish for respiration process. Durable, can be reused and washed repeatedly. Creates bubbles in fish tank while attached to an air pump(air pump and air tube is not included). Specifications: Color: White Material: hard gold steel sand Item Size: Approx. dia. 3.5cm, dia. 5cm, dia. 8cm,dia 10.8cm Package include: Only 1*air bubble stone Or 1* ari bubble stone with parts (Tubes Not included in the package) Suitable for inner diameter 4mm soft tube,The tubes need to purchase separately Note: -Need to connect the air pump for use Because this bubble stone has very delicate bubbles, it is recommended to connect a high-power air pump for the first use. -Soak in water for 15 minutes before use. -For long-term use, if there is dirt blockage, and the bubbles is reduced, please take it out of the fish tank and wash it again and again. -The air stone can be used repeatedly. -Please allow 1cm differs due to manual measurement. -Due to the different display and different light, the picture maybe a little different with the actual color of the item. Thanks for your understanding. 1pcs aquarium fish tank air stone (Tubes not included in the package) /1set aquarium air stone with parts (Tubes not included in the package) 4CM Orange Air Stone [ATTRIBUTES] - Battery Included: No - Voltage: None - Material: Gold steel sand - Battery Included: No - Voltage: None - Material: Gold steel sand - Model Number: bubble air stone - Tube Calibre: about 4mm - Brand Name: ZHIYANG - Origin: Mainland China - Type: fish - Power (W): None - Usage: increase the air volume in water - Dia.: 3.5cm,5cm,8cm,10cm - Features: Creates Bubbles In Fish Tank - Model Number: Bubble Air Stone - Voltage: Other - Dropshipping: Support