heat and temp problems

whats the ideal temperature for the girls? Celsius or Fahrenheit

26-28 celsius 65-70 farenheit

^ yea thats about what i keep them at, you can go up to 80 or so F, but thats pushing it.
also, its around 23C - 25C, 28C is already 82F and thats high...

i aim for 72 degrees. thats about what i keep my house' AC to, and they seem to like it, high enough to evaporate any water from foliar feeding quickly, and if the fan turns off or breaks, its a while before it gets to high temps

thank you heaps u legends

is 20 C alright?