Is there any taboo to keep turtles at home?

Turtles were called "Xuanwu" in ancient times and belonged to one of the four spirits. The tortoise is also a symbol of longevity. It is quite appropriate to keep turtles at home, especially the owner who lacks fire. Keeping turtles can flourish.

In addition, the number of turtles is preferably 3 or 9. If 9 is too much, then 3. "3" stands for "life" and endless meaning.