double rex care

Hey everyone. I'm brand new to this site, so be patient with me. I have a male, double-rex rat named Jarvis. Despite a mysterious lump that went away over time, he has never had any other health concerns. But I've noticed that he has lost a lot of weight in the past month—a concerning amount of...

We just got this lovely little lady Miss Honey, who is a double rex. She is our first hairless rat (we have thirteen other regular rats) and we were just hoping to get some helpful tips to give her the best life possible!