Hi folks

I am new to this forum so please bear with me.  I have an old adult hermann and have recently acquired three new 2 yr olds.

The three babies are inside on a table.  The first two I had about three months ago and they are positively thriving. The set-up seems excellent. I got a new female to join them about three weeks ago and she seems to have settled in very well with the others but she is not eating properly and continually walks the perimeter of the table.  I have tried all sorts of food, frequent baths and am running out of ideas. 

Any advice please?