The goby we usually talk about is actually the collective name of all goby species in the goby family, and it is also the largest family of fish. According to the encyclopedia, the number of known species has reached more than 2 100, which is quite amazing.
Earth tiger belongs to a kind of goby, whose scientific name is Zi Ling goby. As a predatory fish, its main food is small fish and shrimp, and it likes to live in water with more sediment. Crouching tiger can often be seen lying in shallow water on the shore in ponds and small rivers in our countryside. When I was a child, I could easily catch them with rice baskets and dustpans. If I have a little patience, I can hold them with my hands.