Flat Round Air Stone (4cm)
A small round and flat airstone for placing on the bottom of the tank to create a bubble pillar.
Aeration stones help with naturally oxygenating the water and creating a current for strong swimming fish to play in. They also help with circulation to help keep food and debris from settling.
Tube Calibre: 0.4mm
Material: Natural sand
Size: Approx. 4cm x1.5cm (D*H)