How do betta fish breathe surface air? In addition to having gills like other fish, bettas have specialized organs called labyrinth organs. By jumping out of the water or simply sticking their head out at the surface, they can take in a breath of air with the labyrinth organs, which are kind of like lungs.

How do bettas breathe?

Bettas are anabantoids, which means they can breathe atmospheric air using a unique organ called the labyrinth. This accounts for their ability to thrive in low-oxygen water conditions that would kill most other fish, such as rice paddies, slow-moving streams, drainage ditches, and large puddles.

How long can betta fish breathe air?

We can make fair estimates, though. In the best conditions possible – that is, a humid climate, non-absorbent surface, cool temperature – your fish can survive up to 5-6 hours. In the worst conditions, with no humidity, absorbent surface, and hot temperatures, it'd be a miracle if your betta can survive for 30 minutes.