Australia's fishlife (split from 'Today's a new day...' thread)

[elephantnose3334]

This new thread is split from 'Today's a new day...' because it deserves its own thread. It's about Australia's (the whole country, including Tasmania) freshwater fishlife. What do you want to discuss about native freshwater fish in my country? I'm a curious soul who wants to study them.

This is discussion for native freshwater fish in Australia.