What is a fishes weakest sense?

A fish's weakest sense is generally considered to be its sense of smell. While many fish have a well-developed olfactory system that allows them to detect certain chemicals in the water, their ability to distinguish between different smells is not as refined as that of some other animals, such as mammals. Additionally, fish rely more heavily on their other senses, like sight and lateral line detection, for navigation and hunting in their aquatic environments.