Chinese name: Piranha pomfret
Common name: Water tigerfish, Piranha
English name: Spotted Piranha, Redeye piranha
School name (Latin name): Serrasalmus rhombeus
Other school names: Salmo rhombeus, Serrasalmus niger, Serrasalmo immaculatus, Serrasalmus paraense, Serrasalmo paraense, Serrasalmo humeralis gracilior, Serrasalmus boekeri, Serrasalmus normani, Pygocentrus normani
Origin: Amazon, Guyana, Venezuela, and other places.
Feeding: Bait is mainly small fish, pieces of meat and other animal feed.
Habitat: 20-30 centimeters long. The body is ovoid, broad and laterally compressed. The body color is gray-green, dark green back and red abdomen. There are sharp teeth. Fierce temperament, can not be mixed with other species of fish. Feeding water temperature of 20 ~ 30 ℃, preferring weakly acidic water.
Breeding: The age of sexual maturity of the parent fish is 18 months. The male fish is brightly colored; the female fish has a fat abdomen. Breeding water temperature 26 ℃, water quality weak acidic soft water. In the 100 cm X 50 cm X 40 cm tank bottom covered with goldfish grass or planting water plants, will be a pair of parents into the fish, 2 ~ 3 days after the spawn. The male fish has the habit of protecting the eggs, so you can leave the male fish behind to look after the eggs. Fertilized eggs hatch out in about four days, and the male fish can be fished out when the young swim. The females lay 2000~4000 eggs each time.
Other: "Piranha" is the public's collective name for a group of fish found in the Amazon River in South America, also known as the water tiger fish (Piranha). It does not refer to a specific fish, but rather to a group of nearly 30 species. Belong to the fat carp family in the saw salmon fat carp subfamily, according to the different food and habits, can be divided into: phytophagous, carnivorous two kinds. Piranha, commonly referred to as pomfret, refers to the carnivorous red-bellied sawfish (nattereri) of this subfamily. The fish has a body length of 30 centimeters (not counting the caudal fin). It is found mainly in rivers from the Andes east to the Brazilian plains. In addition to the Amazon River, the Cuiabá and Orinoco Rivers are its main sources. The coloration varies slightly depending on the river, from blue-gray to brown-gray on the back and pale red to blood-red on the belly of a healthy individual of 10-15 cm. It is the most common species of Piranha, and the foraging behavior of close group activity makes them quite an excellent group in the Amazon.
The red-finned pompano is a close relative of the piranha, and it is used by unscrupulous traders in the market for profiteering. These traders use its similarity in appearance to the Piranha to confuse people. The two fish are almost identical as juveniles, but the pomfret has a more developed palate and a larger bite angle. Red pomfret, also known as freshwater pomfret, the scientific name of the short cover giant fat carp, is our country in the 80s from Brazil to introduce the promotion of species. Body length up to 60 centimeters or more, belongs to the pomfret family of phytophagous species. Red pomfret has teeth in the mouth up and down two rows, the first row of 12 - 14. The second row of 2. The teeth are blunt triangular shape, the upper and lower palate is parallel after closure. Piranha pomfret has a row of teeth in the mouth up and down, the number of 28 - 31, teeth are sharp triangular serrated, the upper and lower palate closed in a staggered shape. The market price of red pomfret (juvenile) is 0.20 dollars each, while the pomfret juvenile is at least between 80 - 150 dollars. Rare species such as violets have a price tag of around ten thousand dollars. Not many common people keep real piranhas because they are not very pretty and expensive. Unless it is some professional players with special hobby who really like their wildness.
Piranha pomfret of more than 30 varieties, and is divided into two major genera of pointed and round head, with a strong aggressiveness of only a few individual species. Such as red-bellied (also known as Kabala, Kashi saw salmon carp), black spotted red-bellied, yellow-bellied, rouge and so on. Especially the rouge water tiger is the most ferocious, has the king of water tiger's reputation, the body length of up to 60 centimeters, very few people in China can be clearly identified. Piranha's intelligence quotient is very high, prey will first attack the prey's tail and eyes. Waiting for its swim can not move before they will swarm, share the prey. Even large animals will attack the shoulder first, because it is the weakest. But the piranha is clumsy and doesn't swim fast. Scientists believe that the discus-shaped body shape is a sign that they recognize each other. Piranha also has a unique endowment, that is, only when the group is ferocious. Once out of the group or when the number is small, it will become very timid. If they are not hungry, even if they put their hands in the water, they will not attack. They will even curl up in a corner. Of course, if there is a wound on the hand, it's a different story. Appreciating the charms of the piranha... Often stops at more than its unique appearance... Its ability to communicate and cooperate between groups can be even more intriguing... One can learn some of nature's everlasting wisdom!
Can I? I googled it. But it seems that everyone is now blocking Piranha, you be careful!