As a brief update... I have 3 rats left now. (From 7 at New Years)
I put Tevy to sleep at the emergency clinic sometime last week or so... the days all blur together now.
I found Pixie dead in her cage yesterday morning. I had just started nebulizing her the night before.
On the upside, I think the remaining 3 -- Skye, Cleo (she is pulling through) and Bella are going to be fine. The FN just seems so empty with only 3 rats!