Sure, here's a simple and engaging story about a fish, suitable for 2nd graders:
Title: Freddy the Friendly Fish
Once upon a time, in a big blue ocean, there lived a little fish named Freddy. Freddy was a friendly fish. He had shiny, orange scales and a big, happy smile.
Freddy loved to swim around and make new friends. One day, while he was swimming near the coral reef, he met a tiny seahorse named Sally. Sally was shy and a little scared at first, but Freddy smiled and said, "Hello! My name is Freddy. Do you want to be friends?"
Sally smiled back and said, "Yes, I would love to be friends!" Freddy and Sally swam and played together. They explored the coral reef and saw many beautiful things. They saw colorful corals, sea stars, and even a big, gentle turtle.
As they swam, they sang a happy song:
"Swim, swim, swim, in the ocean blue,
With friends like you, there's so much to do!"
Freddy and Sally were very happy. They promised to always be friends and to help each other whenever they could.
One day, they saw a big, dark shadow in the water. It was a huge whale! Freddy and Sally were a little scared, but the whale smiled and said, "Hello, little ones! Don't be afraid. My name is Wanda the Whale. I am your friend."
Freddy and Sally were happy to meet Wanda. Wanda was very big, but she was also very kind. She took Freddy and Sally on her back and showed them the deep parts of the ocean. They saw glowing jellyfish, playful dolphins, and a beautiful underwater garden.
Freddy, Sally, and Wanda became the best of friends. They swam together every day and had lots of fun adventures.
And so, in the big blue ocean, Freddy the friendly fish, Sally the seahorse, and Wanda the whale lived happily ever after.
This story is simple and uses basic vocabulary and sentence structures, making it suitable for 2nd graders learning English.