Baby fish are called fry.
Newly-hatched fish are known as "fry." Other names include hatchlings and fingerlings.
The name of a young fish is a 'fry'
if you mean a baby fish, well, the name for a baby fish is a "fry" just like how a baby dog is a "puppy"
Fry.
Fingerling
spawn
guppie
milk teeth
Milk teeth
Newborn baby fish are known as 'fry'
The term for all baby fish is fryfry