Aquarium Fish Tank Plastic Striped Air Tube Airstones 4mm Colorful 4pcs

Specification:

Description:

• Used to increase the dissolved O2 level in the aquarium.
• It is an important instrument to successfully keep aquatic fish for process.
• Notice:
  1.The airstone need to be connected  with your pump.
  2.Airstone only,others are not included here.
   
• Instuctions:

             1.Attach air hose to air stone inlet.
             2.Place in desired position in aquarium.
             3.Airstone can also be covered with gravel if required.
             4.Adjust air flow as required.
             5.Never restrict airflow from air pump.
             6.Use a non return air check valve to properly regulate air flow and protect from water damage to the air pump.