Why doesn't Xi Shiban, who is cultivated artificially, dye his hair?

1. Variety problem: There are many varieties of Xi Shi ban, and some varieties may not be very bright in color. Environmental problems: unsuitable breeding environment such as water quality, water temperature and insufficient light will also affect the color of river stone spots.

2. Feed problem: The feed lacks some necessary nutrients, such as protein, fat and vitamins. It will also lead to insufficient hair color. Management problems: improper management, such as excessive density, deterioration of water quality, pathogen infection, etc. It will also affect the color of the spot on the stream stone.