Wakin
Wakin only have slightly stockier bodies than single tails, but are easy to recognize from their small, double tail. They are not kept much outside of Japan, although they do pop up in local aquarium stores now and then and can often be bought online. If you manage to obtain one, it’s not a good idea to keep it in an aquarium – like single tails, they are supposed to grow very large. A pond is a much better idea.

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