Just wondering which one is overall best, I am thinking yabbies but i might end up with Estuary Perch. Also is Estuary Perch "Australian Bass"?

It is very similar to and very closely related to its sister species the Australian bass, Macquaria novemaculeata. Key differences in estuary perch are that:
it has a slightly larger mouth and slightly more "scooped" forehead;
it tends to remain in the estuarine reaches or (more rarely) the extreme lower freshwater reaches;
it has a diet with more emphasis on small fish and prawns;
it has a slightly larger growth potential than Australian Bass

The broodstock were taken by chartered aeroplane to a leading bass farmer in New South Wales, which led to successful spawning and the growing of larvae in purpose-built saline plankton ponds

Ooooh , maybe another variety of fish for us Mexicons