Mouth rot? Or something of that kind.

[cdante]

Hi. I have two ~1 year old bearded dragons, both are sisters and living in separate cages. Lately I've noticed one of them is not doing so well.

I feed them greens and crickets daily and one is refusing the greens and only going for crickets.
she has also been sitting with her mouth open all the time. I don't know what this means. Am I just being over protective or is there something I should investigate here?

 

[Caramell]

Usually, sitting with the mouth open is just gaping, they do it to regulate their body temperature.
Could you go over the setup, including lights and temps, and what you measure temps with?