Piranha

The piranha is a rare fish that appears in the river during the day time. It appears in the river. It is quite expensive for such a small fish, in fact, it sells for 2,500 Bells, making it the most expensive 'small' fish. ACCF fish encyclopedia: "A shy species, these prefer to stay in groups. They're popular at aquariums." In the museum, the piranha appears in the middle tank (ACWW) or the right tank in ACCF, where it will bash against the walls of the tank in an attempt to reach the player.

Further information
The red-bellied piranha is one of the most ferocious fish. It can be found in the River Amazon. They grow to about 33 cm and weigh 3 1/2 kilograms.