Question: What is a group of fish called?
Answer: The group of fishes is called a school, it contains the same variety of fishes that move together with each other in a synchronized form. They can twist, glint shapes, turn, or sweep together.
A school of fishes and a shoal of fishes are different from each other, a shoal is mainly a loose cluster of aquatic creatures swimming together whereas in the school of fishes there is only one type of fish.
It is mainly defined as a collective set of nouns that are used to define any group of fishes. The fishes form these kinds of groups so that they could create fear in the predators.
(The school of fishes can travel faster than any single fish).