Rio Ventuari is also an example for extrems. It's one of the rivers where C. zebrina is native and breed (still not breeded in tanks) and where also Astronotus has a very wide range and the river gets to 95/97 degrees Fahrenheit in the dry season.
At the other hand we even have people here in germany that breed Oscars outdoors o the summer in poly pond tubs and german summers are not known for there long and steady high temperatures.
I also had to admit i keeped Oscars for a period of time with broken heaters and the temp was below 70s. Maybe 18/19 degrees Celsius and the fish still Showed apetite. Of course thEY where slow and not so active but an adult Oscar can handle a very wide temp spectrum.
We need to stop talking about the people as if they were the crown of creation.
The administrator has disabled public write access.