Did the Colosseum Ever Host Naval Battles with Sharks?

Ridley Scott's "Gladiator II" features a scene where the Colosseum is filled with water and sharks for a mock sea battle, raising questions about historical accuracy. While the film takes creative liberties, the concept of staging sea battles, known as "naumachia," in flooded amphitheaters like the Colosseum is historically accurate. However, there is no evidence that sharks were ever used in these events.