The zebra doghead fish is larger in size, has a strong sense of territory, and has a very cruel personality. If there is insufficient housing space, fighting may occur. Therefore, it is crucial to prepare a large enough fish tank for it.

Generally speaking, for zebra doghead fish kept alone, it is recommended to use at least 80 liters (about 20 gallons) fish tank. If you are keeping multiple zebra dogfish together, you need to prepare a larger fish tank to ensure that each fish has enough swimming space and to reduce the possibility of fighting and aggressive behavior between them.