Lethargic Female Krib.

One of my female kribs has been bullied out of her position, of golden girl, by the male and other female krib. After what I'm assuming is munching on her young, she did have a couple of fry around but not seen them for a few days.
She's been put in isolation to stop the bullying and try and get her energy levels back up. She also doesn't seem to be feeding very well. Is there anything more I can do or give her to help perk her up?
She doesn't have any obvious signs of injury other than her slightly nipped tail fin.

Yeah that's exactly what they have done.
I'd rather not give her away, I'm planning on getting some more hideaways and hoping that will help. But if the bullying doesn't stop I will have no choice but to give her away.