Since I've had my radix her color has started to dull a little. I'm feeding her mostly mice alternating with safe fish and worms. She eats it all with gusto, and still seems energetic. Is this related to aging at all? Should I take her to the salon for a touch-up? She's large (40" maybe) and at least 10 years old according to her last owner.

Possibly unrelated: to my knowledge she's never been medicated against parasites and she's wild-caught. Should I do this, and if so, how?