Aaron Carter’s Dog Zelda Rehomed, Living with Fiancée’s Sister

Aaron Carter‘s dog has made it safe and sound to a new home … and we’re told she’s staying somewhat within the fam — going to a relative of his fiancée.

Jennifer Martin, Melanie‘s sister, and her fiancé Max tell TMZ … they took in Zelda, the 3-and-a-half-year-old German shepherd, the day after Aaron passed.

Zelda was in the room with Aaron when he passed … and seemed to be in shock when she was found … acting nervous and scared.

Jennifer and Max tell us … Melanie was going through a lot after Aaron’s death, so it just felt right to take Zelda in, adding the dog’s been doing a lot better since the traumatic incident.

Zelda isn’t going to get fixed, but they don’t want more pups … Zelda’s already had 2 litters. They’re worried about the surgery changing her temperament — she’s already been through a lot.