Living in a rocky area with a water depth of 3- 107 meters, macroalgae thrive here. They like to live in the backlight of rock reefs or between crevices, and often make holes in their habitats and hide in them. With the help of the movement of the pipe feet and thorns, it moves a few centimeters on the seabed every 5 minutes. Strong regeneration ability, regeneration after external organs such as thorns are damaged, and cracks and fractures of the shell can also be recovered quickly. Afraid of light, staying up late during the day and coming out at night. The suitable growth water temperature is 15-03℃ and the suitable growth salinity is 25-30.