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Top Sea Creatures in Disney’s Underwater World – The Little Mermaid

The Little Mermaid is a beloved 1989 Disney animated film that tells the story of a young mermaid named Ariel. The movie is full of vibrant underwater scenes with a variety of sea creatures, including many different types of fish. With Disney releasing a new live-action version of this classic this month, we wanted to dive into some of the fish and other creatures featured in the original film.


Flounder is one of the main characters in the movie and is Ariel’s best friend. He is a bright yellow and blue fish with big, expressive eyes. Flounder is a loyal friend to Ariel and often accompanies her on her adventures.

Flounder is more than likely some type of angelfish or some other similar vibrantly coloured reef fish. Though the exact species has never been agreed upon.


Sebastian is a red Jamaican crab who serves as King Triton’s advisor. Although he is not technically a fish, Sebastian is an important character in the film.

He is known for his musical numbers, including “Under the Sea” and “Kiss the Girl.”

There has been speculation as to whether Sebastian is a Lobster, but after much debate, people seem to have settled on the fact he is a crab.

Step aside Sebastian, there’s a new Red Hairy Hermit Crab in town!

Herman the Hermit Crab on The Little Mermaid Poster
Herman the Hermit Crab on The Little Mermaid Poster

Flotsam and Jetsam

They are a pair of electric eels who serve as the henchmen of the movie’s main villain, Ursula.

Flotsam and Jetsam are slimy, sinuous creatures with glowing green eyes and sharp teeth! The film does sadly give eels a bad reputation. We promise the eels in our aquarium won’t lure you to a sea witch!

Making their acting debut…say hello to Fun Size and Crunchy!

Crunchy and Fun Size on The Little Mermaid Poster
Crunchy and Fun Size on The Little Mermaid Poster


Blowfish are seen briefly in the movie as one of the many sea creatures who attend King Triton’s concert. They are easily recognizable by their puffy, spiky appearance.


Lionfish are another type of tropical fish that are briefly shown during the concert scene. They have distinctive stripes and venomous spines on their fins. We have lionfish in the aquarium, they are beautiful fish that are a real sight to see!

School of Fish

Throughout the film, there are many scenes featuring schools of fish swimming in unison. Also, these fish come in a variety of colors and shapes, and as a result, their movements add to the overall visual spectacle of the movie!

Overall, “The Little Mermaid” features a wide variety of fish and other sea creatures. Each fish has their own unique personalities and appearances. From Flounder’s cute nature to the eels ominous presence, these fish help bring the underwater world of the movie to life.

If you want to come and be part of our underwater world, book your tickets today!

Ocean Tunnel at Bristol Aquarium
Ocean Tunnel at Bristol Aquarium

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