5 Inch Round Air Stone

The 5 Inch carded round airstone is suitable for medium aquariums and nutrient reservoirs.
Larger tanks should use multiple airtones.
It can also be used in the bottom of pots.
As well as having a handy size and shape, the 5 inch round airstone is also encased in plastic making it longer lasting then standard airstones.
As with all airstones it works by releasing a fine sphere of bubbles throughout the water.