Biologists believe the Australian lungfish, a primitive species with lungs and gills, is about 90 years old with no known living peers
Meet Methuselah, the fish that likes to eat fresh figs, get belly rubs and is believed to be the oldest living aquarium fish in the world.
In the Bible, Methuselah was Noah’s grandfather and was said to have lived to be 969 years old. Methuselah the fish is not quite that ancient, but biologists at the California Academy of Sciences believe it is about 90 years old, with no known living peers.
(SOURCE) https://www.theguardian.com/us-news/2022/jan/26/methuselah-oldest-aquarium-fish-lives-san-francisco