What kind of stalk is a fish stall?

In the TV series The Knockout, the boss was born selling fish from the beginning.

Because of money, Gao Qiqiang had to commit himself to a fish stall in the vegetable market. In order to keep his position, he had to turn to two brothers, Tang Xiaolong and Tang Xiaohu, and then he gradually gained the upper hand.

Netizens ridiculed that selling fish became bigger and stronger first, so there was a stalk of fish stalls.