Piranha need a very large tank because they are messy fish. They should be alone in the tank with a pH of between 5.5 to 7.0 and a temperature of around 78 degrees.
Tetra
An Oscar is of the cichlid family, the piranha belongs to the characin branch. Otherwise known to freshwater aquarium owners as the bothersome "fin-nippers" which is what characins are known for, along with the skittish hyper behavior.
Some zoos have a piranha exhibit, but more likely they could be found at an aquarium.
fishes like whales dolphin and more big fishes can live in a aquarium
They are related
like a piranha or a shark? it all depends on the size and type
there is only one type of pirana.
They have tiny scales.
bilateral
A ten gallon aquarium is definitely too small for piranha. Piranha grow to about 8 inches in length, can be active and jumpey swimmers, and produce a lot of waste. All of these factors make it not suitable to keep them in anything less than a 90 gallon aquarium.
Pacu are a type of piranha. They do have scales, like most fish, as well as fins.
the red belly piranha are not andanger.they are wildly spared in amazon basins and useualy kept as pet in the aquarium!here in the Philippines they are aviallable in the petshop.the piranha have a code name "bulldog fish"/pogi in tagalog means "handsome" cause they are illegal to sell here in the phillipine.