What is the name of this dangerous freshwater fish?

i had no idea they were that big.

I’ve heard word they are fine in solitary but in groups or when blood is detected in the water well then look out coz a feeding frenzy will ensue.

Uninitialized, Believe it or not, piranhas belong to the same family as neon tetras. They are both characins. But please don't keep them together in the same tank, or you'll end up with fat piranhas, but no neons.

I don't like the piraha fish 🐟

easy-pesy

Player #20261574, candiru are long and silvery. They're known as pencil fish

Piranhas are very tasty. Caught a few in the amazon river.