How Do You Say Pretty Little Female Fish in French?

There is no single perfect translation because it depends on context and emphasis. Here are some options:

Emphasizing "pretty": "Jolie petite poisson femelle," "Charmante petite poissonne," or "Belle petite poissonne."

Emphasizing "little": "Petite poissonne adorable" or "Mignonne petite poissonne."

Other options: "Un joli petit poisson femelle" or "Une petite poissonne gracieuse."

The best choice depends on the desired tone and context.