Quote Originally Posted by purple python View Post
I recently switched foods from Kaytee Forti-Diet Pro Health to Mazuri. I noticed the rusting about a few days ago so it could be the food. She's close to 3 months and +250g - would that be old enough for molting?. I had not considered American blue, the darkest part of her back makes me think Slate blue?

No flash, natural day light...




No flash, average room lighting...



Definitely American Blue. Slate Blue is just a labeled shade of American Blue. I tend to stay away from calling them Slate, Sky, Powder, etc. Technically, if she doesn't have a light undercoat and a dark top coat, they consider her shade British Blue.

Rats molt throughout their life. Babies molt 2-3 times by the time they are 3 months. Then adults randomly molt throughout their lives.

Kaytee is a horrible diet, you'll have better results with Mazuri.