Goldfish.
That always scoops it at festival in Japan.
It may be not a fun if there is only one fish.
If you buy a lot in a 90cm aquarium, it will be quite impressive!
White cloud mountain minnow.
Alias, poor man’s neon tetra.
In Japan, it used to be called Coppy.
I used to keep the fish in my room, but now I keep it in an aquarium.
It looks cute, but it is a ferocious fish that eats baby goldfish.