20mm Round Air Stone For Pond / Aquarium Fish Tank Multiple Quantities

Description

Description
Description
Features:
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.
Usage:
Before use, please immerse it in the water for 15 minutes.
After a long-term use, clean your stone regularly so that it will be most effective.
If the air stones just have bubbles in one part, please change a pump of higher power.
Color: gray, red, blue
Size: 20mm
Product package:
1* Bubble Stone