Diaphragm pumps, also called air pumps, pump air into the aquarium or pond. The air enters the water through air stones and thus increases the oxygen content. On the way to the water surface, oxygen dissolves from the air bubble in the aquarium water and at the water surface the air bubbles produce small waves which increase the water surface. The larger water surface can absorb more oxygen from the air than a calm water surface.
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• Find out more about the technical options for aerating aquariums here: Bombas de aire