Bollabie

The Bollabies are small marine magical creatures. They can take the form of any marine life they choose.

Appearance
Due to the fact that they can take the form of any marine animals it is hard to tell them apart, however they normally resemble regular blue fish. They have big round turquoise body with glowing green light covering it and usually sad-looking face and big, green eyes with giant pupils. When they change form, they pop like bubbles.

Season 5
The Bollabies were seen in many episodes in Season 5. They are shown to be playful when Nissa played with them in one episode.

The Mystery of the Abyss
The Bollabies were seen only in the beginning of the movie during when they shown some past of some Season 5 characters in the Infinite Ocean.

Trivia

 * In Winx Club: The Mystery of the Abyss, they are pink instead of turquoise.
 * In Winx: Sirenix Surfers, they appear in three more colors: periwinkle, gold and pink-lilac.
 * In Make Over Magic, they appear on the second decoration's wall, among other fishes and transforming themselves into two different fishes, a blue and a gold one.