The red-bellied piranha or red piranha (Pygocentrus nattereri) — is a predatory fish kind and it belongs to piranha Serrasalmidae subfamily , which is one of the most well known kinds of piranha.
These fishes live in a huge schools that spend the majority of time looking for a prey. The fish is rather gluttonous, therefore it can live only in the waters rich with fish.
More often red belly piranha can be encountered in some shallows, in the depth and in the muddy waters. Again, as one of the most known piranha kinds, it has a reputation of a freshwater predator, that is dangerous both to human and animals.