What temp should i keep my AKR's at during the 4 hrs of darkness?

At the night portion of my grow cycle the temp drops down too a 68-74 area, is this going to kill my plants?

Those temps are perfect 68-74`. you will be fine

Thank you !

Shoot!!! My bredda my temps were dropping into the 40s the last couple weeks! On my outdoor plants. I have never had the pleasure of growing plants with pink pistils....until now! My purple strain is wayyyy more purple with pink pistils it is crazy looking. Your temps are pretty much perfect!

Ty for the advice everyone just wasn't sure if it was any different for auto's (if they needed it hotter) Maintain the heat and mange to keep it at a nice 85 to 68 usually more like 85-70.
the weather is going to heat up outside here soon tfg start saving some money on heat gas and hydro.