Aeration: (n.) Aeration, the addition of oxygen to the aquarium water, occurs when the surface of the aquarium water is disturbed. When the water surface is agitated, more carbon dioxide is released from the aquarium water into the air and more oxygen enters the water. Aeration provided by surface agitation is necessary in most aquariums to provide enough oxygen for the animals so they can breathe. Any piece of equipment that moves the water, such as a bubble wand or filter, will aerate the water. One of the very few fish that doesn’t need aeration is the betta (Betta splendens) because it has the ability to breathe atmospheric air (because it has a labyrinth organ).
Article Tags:aeration · air · airation · atmosphere · breathe · breathing · carbon dioxide · fish channel · labyrinth organ · oxygen