I just wanted to warn everybody about the Kaytee Fiesta mix food. Darcy did not really eat or drink all weekend, starting Thursday night, and she was very lethargic and had diarrhea as well. I took her to see Dr Leak at Banfield yesterday. Dr Leak told me that she has seen several buns lately with similar problems, and they all use the Kaytee Fiesta mix food (as does Darcy). She's not sure if the food is the cause, but I've noticed that this bag has different foods than previous bags. Even though she's not certain if the food is the problem, she still recommended I throw this bag out and change to a different brand for now.
Darcy is doing much better today, although she's definitely not out of the woods yet. She's still at the vet, still has diarrhea, but is at least eating on her own some and is much more alert. I just wanted to warn everyone to keep a close eye on their buns-- Dr Leak said I was very lucky to have caught these problems as early as I did. So if you're using the Fiesta mix, think about getting something else for now, and if your bun eats Kaytee and has diarrhea and/or seems lethargic, take it to the vet as soon as you can!