This is the moment a sick fish underwent radiographs at a zoo in Milwaukee. Footage shows veterinarians conducting medical tests on a Pacu fish at the Milwaukee County Zoo, on February 18. The marine ...

Medical staff at the Milwaukee County Zoo in Wisconsin were leaving nothing to chance as they performed an extensive amount of tests on a Pacu fish, footage published on Tuesday, February 18 shows.

Florida's waters just got a whole lot scarier! PIRANHAS are growing in numbers, and we just caught HUNDREDS of baby piranhas in a Pacu fish trap! Are these razor-toothed predators taking over? Watch ...

However, many others pointed out the fish was more likely to be a Pacu rather than a piranha, and they doubted the weight. “It’s a pacu,” wrote one commenter, while another added ...