|The New Pet|
|Season 1, Episode 17|
|Air date||July 24, 2007|
Tensions erupt between the girls when they discover a young fish that needs taking care of. Each princess feels that she should be the one to look after it and their friendship is tested.
In a storm, Polvina, Ester and Tubarina find a butterfly fish with a hurt tail. They take him back to the Starfish Palace so they can look after him. Ester’s parents left a note for her, saying that aren’t there because they are visiting the Shark Palace. Spikey begins to feel neglected at the girls fussing over the butterfly fish.
The girls begin arguing over where they should take the fish after the storm is over. They don’t notice that the fish has disappeared during their argument. The girls and Spikey search around the Starfish Palace for him. Spikey manages to find the fish and open the window so it can leave in the storm before telling the girls where it is.
The girls and Spikey head outside to get the fish back into the palace. It is then that they learn that the fish didn’t like the girls arguing about him and that he wants to go home. After the storm passes, the girls take him back to his home. As they are about to head back, Ester tells Spikey that the fish would never, ever take his place.