I checked the care article to be sure. It says they need day temps around 85 degrees which I thought may have been a little high but I guess not judging by where they are from. Your night temps should have been a little higher than 63 because that's the lowest that they can bare not ideal. I glad you researched first. A lot of people do not which is a mistake. I'm going to stop talking about this though. I do not wish to upset you further.

Take care Ian.