When you soaked her, did you do this where she could stretch out & do swimming (in place) motions (with your hand for support in shallow water)? Because that helps a LOT more than just sitting still to "soak". Try the bathtub.
As far as keeping the "humidity in their room around 50%"- what's the actual humidity IN their enclosures? That's what matters, & that's where additional heat might be drying her out. (Unless you're one that heats the whole room? Just trying to brainstorm with you...)
Reply With Quote