Would he calm down or be bothered by bubbles? Or would you end up swelling up to burst? Livio Leoni, collaborator of the Natural Sciences Museum of Bergamo, an aquarium expert and manager of the Mahengechromis blog, excludes fanciful hypotheses. "The fish swallow water from the mouth and expel it from the gills, " he says, "so the hypothesis that it can swell is unfounded."

A bad end
In a recently opened bottle, however, the carbon dioxide introduced to "gass" the water and the lack of contact with the air make the water very poor in oxygen. So a fish wouldn't have a chance: it would die asphyxiated.

The funniest of the abyss GO TO THE GALLERY (N photo)

The fish that uses the utensils GO TO THE GALLERY (N photo)

Twenty thousand creatures under the sea GO TO GALLERY (N photos)

Would you be interested in it:
Do Arctic and Antarctic fish have antifreeze?
Can fish become deaf?
Overfishing? No thanks: let's stop the wild fishing