Made my first vet trip with Fynn yesterday. Was concerned because he was spending most of his time at the bottom of his cage 'resting', and he hadn't really touched his fresh food all day long. He even turned his beak away from banana, which seems to be his favorite food.
Vet couldn't find anything wrong with him, but he did prescribe Baytril and sent out a stool sample for a gram stain.
He's acting better today, and is spending his time up high again. He still isn't eating as much as he usually does. At least his poop has more signs of his having eaten something.