The world’s oldest living aquarium fish is actually even older than scientists initially believed.
According to an analysis by the California Academy of Sciences, the Steinhart Aquarium’s beloved Australian lungfish named Methuselah is estimated to be about 92 years old, with a high-estimate of over 100.
Popular Science reports that "Methuselah first arrived at the San Francisco aquarium in 1938": https://flip.it/Vgu_DO