yep those temps would be fine for a crested. they do well in temps between 65-82 (82 for very short periods of time, generally you want to keep it below 80). if it gets slightly cooler at night that is okay--they can handle short periods of time down to about 62. at lower temps you will notice that they don't eat as much and aren't as active because their metabolism slows, but this is normal.![]()