UP Aqua Air Stone

20" Air Stone.
A fine wall of bubbles for healthy fish and beautify your aquarium.
A beautiful, attractive aquarium aeration or filter and circulation.
 
Directions:
For best operations, soak the air-stone straight into water and have it be completely soaked before use.
Connect the airline tube with air-stone.
Place the air-stone on the bottom of aquarium and fix the flange of air-stone base by covering with gravel to prevent it from floating.
Connect the airline tubes with the air-pump before turning on air supply.