I have 7, take that back 5 PCF and I mist them a bit every couple of days. My frogs like to be dry I notice. They have layed eggs and the males croak at night in my tank. They do fairly well in low humidity, just mist them every so often. Keep the bottom of your tank semi moist with logs or vegitation they can hide and bury themselves into....that should be enough. BTW, they love crickets :-)