Instead of using Trout and Perch I am looking to find some kind of Cichlid for something different.
I have heard that some Geophagus, more specifically the Geophagus brasiliensis, can be kept in cool water and have been known to populate some water ways in Perth.
Curious as to wether or not these fish would work well in aquaponics and also if they are edible? (or because they are classed as a domestic fish is it frowned upon to eat them?)