I just bought three mantella baroni, and one of them has been constantly trying to get out of the vivarium and has rubbed the skin off her nose. She starts in the morning and keeps it up all day untill the evening. The temp is around 70 degrees and humidity is 80%. Why is she acting this way? I am going to put her in a seperate tank, is that a good idea? Should I be treating the sore or will it heal on its own?