Circle Fish Tank Aquarium Air Stone Oxygen Aerator 

Circle fish tank aquarium air stone oxygen aerator increasing air bubble item pond pump hydroponic oxygen supply stone

Features:
- 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, washable and sintered by high temperature.
- creates bubbles in fish tank while attached to an air pump(air pump is not included).

Specifications:
- medium: 10 cm
- color: green or orange
- material: stone

Item size:
- small outer diameter 7 cm,
- medium outer diameter 10 cm
- item weight: approx. 56g/94g

Note:
- only 1 air bubble stone (no tubes)
- suitable for inner diameter 4mm soft tube
- 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.