Temperature difference

My is 23,5*c a day ,overnight 19,5*c ,so +-5 degrees . Don’t go too low overnight.

I would say around 5 degrees. If you are around 25°C during lights on optimal temp. for lights off would be between around 20. Cold nights can bring out the purple and red colours if you are searching for a colourful crop. Check out my Diaries i had two crops of Dos Si Dos 33 (the same genetic), one of them turned out dark purple due to a lower night temp. Roo cold nights will affect yields for sure!

Not more than 10° from day to night. Can lower it when ripening stage hits for some color and more trich develompent