Thank you for the reply, but unfortunately it turned out she had gotten a fungal infection from Cryssie - even though they were still completely separated - and she died... I gave her a bark semicircle thing to hide under, and her tank was 25^C with an under tank heater at 70% humidity with a towel covering the top on the inside to stop her nose rubbing on it. I still don’t know why she was doing it... at least Crystal doesn’t do it.