I will go out on a lim and say that he is probably talking about light cycle temps. You don't want to have a temp veriation of more than 10d if you can help it, so in the dark cycle, about 68f.
Adieu
BlueBear Reviewed by BlueBear on . another temperature question Garden Knowm said : I'm wondering if the temperature should be lower at night since I read somewhere that in will increase resin production ? Rating: 5