How much oxygen does an air pump add to the water

  • I have seen a lot about how air pumps are required for fish tanks and how some filters even have air pumps to help out with this stuff so how much oxygen does the air pump add to the water for the fish?

    • Best Answer

    Air pumps do not directly add anything to the water itself - instead they create some bubbles which adds surface movement which is how the gas exchange works in aquariums (and how oxygen gets added to the water and how carbon dioxide gets expelled out).