Is it possible to use different shells for each terminal?

Hello, I'm a self-taught computer student (Mac).I wanted to make the terminal look cool, so I looked it up and used fish from the default bash.

However, the import error of conda in anaconda could not be cured.
I returned it to bash.I was using itterm2 at that time.

And I am currently using bash for terminal.
However, fish is easier to use personally.So

I would like to use the shell differently.The following example

• Terminal (Bash)
• iTerm2(fish)

Is this possible?Also, if possible, please let me know how to do it.

shellscript

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