The average temperature for most tropical aquariums is 78F.
That's probably the best, but, as in the 'outside world', the temperature will always fluxuate. Nevertheless, it won't be that much if you have a heater.
Anywhere between 75F and 80F should be okay, though.
In other words, thats between 20C and 26C.
Glad to be of assistance=D x
70 Fahrenheit is the best temperature.
Nothing higher than 80 Fahrenheit. & Nothing lower that 60 Fahrenheit.
They can live happily between 66 ° F - 84 ° F (19 ° C - 29 ° C), but at the middle of that range is ideal.
Around 77F (25C) is best, but it doesn't need to be exact.
Ian
75f-80f there is no need to go higher or lower.
At least 76. 78-80 degrees is better.