According to New Knowledge Encyclopedia, the goby will eat small fish. The goby will attack other fish, especially fish that are smaller or about the same size as it. This fish is small, has many species, does not live very long, has a varied diet, and is not kept in captivity, so it will eat dead fish.

The goby is distributed in all coastal waters of the world except Antarctica and the Arctic, especially in tropical and subtropical waters, where it is most abundant, and some species are also adapted to freshwater life.