Who are the main characters in the 'little blue fish story'?

There might be other fish too. Big fish could be main characters as well if they are constantly interacting with the little fish, either as threats or as some sort of guide. For example, a wise old big fish could be a character that gives the little fish advice.

The main character is the little rainbow fish. He is a fish with beautiful, shiny scales.

I'm not sure as I haven't read it, but I assume the little fish is one of the main characters. There might also be other fish or sea animals like a big shark that could be a threat, or a friendly turtle that helps the little fish.

The little red fish is the central character for sure. But there might also be other fish or sea animals in the story that play important roles. For example, there could be a big blue fish that is either a friend or a foe to the little red fish. There might also be some small colorful fish that the little red fish interacts with. So, while the little red fish is the main focus, the other sea creatures in the story also contribute to the plot and can be considered as important characters in their own ways.

The main characters are the fisherman and the little fish.

The main characters are the three little fish, of course.

Depending on the story, there could be other sea creatures too. For example, a friendly crab that gives the little red fish advice, or a seagull that the fish has to avoid. These characters add more depth and action to the little red fish story. The interactions between all these characters drive the plot forward and make the story interesting.

The main characters are the fisher and the little fish. The fisher is the one who catches the fish and has to make a decision about what to do with it. The little fish is in a vulnerable position and tries to persuade the fisher to let it go.

The main character is of course the little black fish. It is the one that stands out and has its own adventures.

The main characters are usually the little golden fish and the fisherman or the fisherman's wife. The little golden fish has the power to grant wishes, and the fisherman or his wife are the ones who make the requests.