`Finding Dory` did not increase demand for pet fish, despite viral media stories
(PHYSorg.com Biology)

If a piece of information is repeated often enough, it will eventually be believed, even if there is no evidence for it. One example of this features the friendly clownfish Nemo and his side-kick Dory, a blue tang fish, who you may know from the animated blockbusters Finding Nemo and Finding Dory.