She has blue hair, blue eyes and blue eyelashes. She has pale blue skin and a pink shell on her forehead. She wears a blue and pink shell shaped top and has a blue tail. She has a pink ribbon on her tail and on her right arm.
Unlike Stella's Guardian of Sirenix, she shows her care to the possessor of her Sirenix Box. This was proven when she said that she heard Bloom crying, so she went out of her box and gave her an advice. In Season 6, she is seen to be the leader of the group because she was the one who spoke their plan to the Winx: To find the Inspiration of Sirenix in the "Source".
In "Sirenix", she is seen when Bloom realized the meaning of the book's riddle, so Bloom told her reflection to her. Because of this, she gave them the next clue to acquiring Sirenix. Bloom figures it out and she tells that they have to go to the place where they started. Then, she and the other Guardians used their power to open the Sirenix Gate.
In "The Problems of Love," she comforts Bloom when she is upset about Diaspro coming between her and Sky. She reassures Bloom that Sky loves her, and if she trusts that, she should not worry about her relationship.
In "Inspiration of Sirenix," she and the other Guardians were asked how Daphne could regain her Sirenix powers. They told the Winx that the only way in which Daphne's powers could be restored: The Inspiration of Sirenix.
In order to save the selkies that have been caught by the Jaws of the Abyss, Bloom summons her Guardian of Sirenix to help. Bloom asks her how to open its jaws. She answers that the Jaws of the Abyss is gluttonous, but as a prey it prefers marine creatures. After the Minnows offer their help, Bloom thanks the Guardian and she returns to Bloom's Sirenix Box.
- Bloom's Guardian of Sirenix is the only one out of the Winx's Guardians to make an appearance in the comics.
- She is the only Guardian to come out of her own will to deal with a situation not involving the Sirenix quest, granting a wish, or the Pillars of the Infinite Ocean.
- Her voice actress, Susanne Blakeslee, also voices Griffin in her crow form and Griselda.