Ammonia is present in variable concentrations in many surface and ground water supplies. It is rapidly oxidized by certain bacteria, in natural water systems, to nitrite and nitrate – a process that requires the presence of dissolved oxygen. Ammonia, being a source of nitrogen is also a nutrient for algAE and other forms of plant life and thus contributes to overloading of natural systems and cause pollution. Ammonia is important to be tested in fisheries.Our AQUASOL ammonia test is based on colour comparison and results obtained are easily discernable.