There is described apparatus for enriching a water environment (70), and a related method of use. The apparatus in particular embodiments has first and second passageways (20, 30) for guiding respective first and second fluids into a mixing region (12) in which the first and second fluids are combined to produce a mixture comprising liquid and gas and an outlet (50) arranged to let out the mixture into the water environment (70) to enrich the water environment (70), Typically, the mixture comprises water and air, and the mixture may produce bubbles of air in the water environment (70) in order to enrich the environment, e.g. increase oxygen levels.There is described apparatus forenriching a water environment (70), and a related method of use. The apparatus in particular embodiments has first and second passageways (20, 30) for guiding respective first and second fluids into a mixing region (12) in which the first and second fluids are combined to produce a mixture comprising liquid and gas and an outlet (50) arranged to let out the mixture into the water environment (70) to enrich the water environment (70), Typically, the mixture comprises water and air, and the mixture may produce bubbles of air in the water environment (70) in order to enrich the environment, e.g. increase oxygen levels.
