Ok so have ask this question a million time

[Barend]

What is the Best temp for a oscar i have read 77 80 80 84 my tank is now on 26.5 to 27.4 need a little help or understanding

 

[Pschmitt]

Live aquaria had it as 72 to 77?

 

[idol1]

I have always kept my Oscars at 75 to 78.