Felipe Cantera;2030945; said:Water temp; depends of where they come from....Paraguay....Argentina or Uruguay?
In the north part of Uruguay, there I collect the balzanii, the water temp right now (winter) is between +15c and +18c.
I have absolutely no idea unfortunately, and probably never will unless there is a physical difference colour or shape between fish from the different localities. At this stage I'll just be keeping the tank at 26 constant.