Fairies and Mermaids

 is the seventeenth episode of the third season of Star Teens Unite!.

Summary
The Star Teens, Nemo and her mermaids, and Daisybelle and her fairies work together to save their ocean kingdom and fairy kingdom from pollution caused by a local monster-made factory.

Characters

 * Ella
 * Inidra
 * Sandra
 * Felicia
 * Lisa
 * Tanya
 * Sheila
 * Veronica
 * Nemo
 * Maris
 * Queen Coral
 * Daisybelle and the fairies

Voice Cast

 * Aimee Carrero - Tanya
 * Ariel Winter - Nemo, Fairy
 * Ava Acres - Fairy
 * Candi Milo - Nemo's Sister #6
 * Cree Summer - Nemo's Sister #7
 * Danielle Judovitz - Maris
 * Grey Griffin - Sandra, Nemo's Sister #1
 * Isabella Acres - Fairy
 * Jennifer Hale - Veronica, Nemo's Sister #2
 * Jodi Benson - Queen Coral
 * Kari Wahlgren - Ella, Nemo's Sister #4
 * Kate Micucci - Inidra
 * Kath Soucie - Nemo's Sister #3
 * Kimberly Brooks - Sheila
 * Madison Pettis - Daisybelle
 * Michaela Zee - Fairy
 * Tara Strong - Felicia, Nemo's Sister #5
 * Vyvan Pham - Lisa

Trivia

 * In this episode, at its beginning, Ella and the girls are playing bowling at Kings Bowl in International Drive.
 * Nemo, her sisters, Maris, Queen Coral, Daisybelle and her fairies all return.