Babies are not able to thermoregulate like adults, so they need temps in the low 80's until 6 months of age or so. Females stay at the low 80's. Humidity is the same as adults I think - I just sprayed Amy twice a day the same as I did for Lily. Amy had plain calcium 6 days a week on her morning feeds and vitamins (nutrabol) once a week until she was 6 months old. Babies are a worry, but it's so worth it to watch them grow up! Amy was a tiny 12 weeks old when I got her - the breeder didn't overfeed them so they grew slower.