Phineas and Goldie
Gender: Female
Professional Information
  Dolphin show fish
  Flynn-Fletcher family (formerly)
Friends and Family
Behind the Scenes
First Appearance:
  "Backyard Aquarium"
Last Appearance:
  "Backyard Aquarium"

"There's our new pet Goldie! I wonder if we're as cute to her as she is it to us. ...Yeah, yeah we are."
Phineas Flynn admiring Goldie[source]

Goldie is the name for Phineas and Ferb's new goldfish pet. She was so special to them that they decided to build her an aquarium and get her friends from the ocean. She also participated in the show and apparently went into the ocean with her fish and oceanic mammal friends. She was still kept in the water bag. ("Backyard Aquarium")

Background Information