Let's go all the wayyyyyyyyyyyyyyyy.
"Back when the Predators launched in 1998, a large portion of the fanbase was made up of Red Wings-loving transplants who worked at the local auto plants. These carpetbaggers were an important part of the initial rooting section, bringing their passion for the game to the arena, as well as their own strange habit --
The Legend of the Octopus. The practice dates back to 1952, when some Detroit rooters decided to throw an octopus onto the ice for good luck, reasoning that the eight arms of the cephalopod represented the eight wins necessary for the team to win a championship. The Red Wings took home the Cup and, with hockey fans generally being superstitious types, the octopi have been raining down from the stands ever since.
Fast forward to 2002, when the Wings came to Nashville, and some inspired Preds lover decided that the team needed its own twist on the toss, this time using a staple of local cuisine. During the game, seemingly out of nowhere, a catfish flew over the glass onto center ice, the crowd went wild, Nashville won, and the tradition was born. (Not everyone was happy about it, though --
one stadium worker tasked with cleaning them up said, “They are so gross. They're huge, they're heavy, they stink, and they leave this slimy trail on the ice. But, hey, if it's good for the team, I guess we can deal with it.'')"