Okay, besides being a bit on the wacky side, I consider this animal abuse! However, apparently they take good care of their finned friends. 
 
"Two performers said that stunt is not for the faint-hearted"
"It is a fishy act that could take your breath away - or more likely that of its underwater performers.
Two “aquamen” amazed crowds gathered in Saint-Malo in Brittany by strolling around with fishbowls on their heads filled with water and goldfish. They breathe through a special valve."
 
https://www.telegraph.co.uk/world-news/2022/11/03/pictured-aquaman-wears...