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Join Aquarimax hosts Rus and Kelly as they discuss questions and comments from Andrejka in Oregon and Juliette in Paris, France.

Here are some links on ancient fish that are kept in aquaria:

Alligator gar-apparently unchanged for 50 million years
http://www.fossil-treasures-of-florida.com/garfish.html

Australian lungfish-have been around 100 million years
http://www.newworldencyclopedia.org/entry/Lungfish

Bichirs and related ropefish Senegal bichir-polypterus senegalus -have been around at least since the Cretaceous period
http://listverse.com/2010/05/14/top-10-prehistoric-fish-alive-today/
http://www.wetwebmedia.com/fwsubwebindex/polypterids.htm
Since before separation from Africa
145-65 million years ago

Arowanas-At least one lineage, the silver arowana, appears to be 170 million years old

http://www.brh.co.jp/en/experience/journal/39/research_1.html