This article is about the episode. You may be looking for the song or the transformation.
Sirenix is the thirteenth episode of the fifth season of the Winx Club series.


To finally obtain Sirenix and enter the Infinite Ocean, the Winx must activate the magic spring of Lake Roccaluce. However, Tritannus determined that they will fail to destroy the lake and the Winx themselves to make sure they do.


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More coming soon...


  • This is the first time that we see Tritannus, the Winx Club and the Trix in 3D in the TV series.
  • This is the last appearance of the Harmonix transformation.
  • This is the first time that we see the Winx girls and the Trix in their Sirenix forms.
  • Starting from this episode, there will be a new opening sequence, but the song is still the same. The opening uses three-dimensional computer generated imagenery instead of a two-dimensional hand-drawn animation. It also includes 3D scenes of the Winx's Sirenix form, the Infinite Ocean and the official Season 5 trailer.


Winx Club Season 5 Episode 13 - "Sirenix" FULL EPISODE

Winx Club Season 5 Episode 13 - "Sirenix" FULL EPISODE


Rai Italian CastEdit

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Nickelodeon CastEdit

Molly Quinn as Bloom

Alejandra Reynoso as Flora

Amy Gross as Stella

Romi Dames as Musa

Morgan Decker as Tecna, as Lemmy

Keke Palmer as Aisha Larisa Oleynik as Icy

Jennifer Cody as Darcy

Kimberly D. Brooks as Stormy

Adam Wylie as Tritannus April Stewart as Nissa


Elizabeth Gillies as Daphne