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Related FAQs: Piranhas, Their Relatives, Pacus, Silver Dollars,

Related Articles: Serrasalminae: Pacus, Dollars, Piranha, Characiform Fishes, Characid Fishes

 Piranhas!

By Bob Fenner

Pygocentrus piraya

 

Piranha Per Se: Catoprion, Pygocentrus, Serrasalmus... About thirty five species. 

Compare these choppers with those of the crushing, plant chewing Pacus. Now you know why they're called "Toothy Tetras". 

Pygocentrus nattereri Kner 1858, the Red (-Bellied) Piranha. Rivers of central and southern South America, east of the Andes. To about thirteen inches in length. the old timey favorite aquarium Piranha.  Cond.s: pH 5.5-7.5, dH to 20, temp. 23-27 C. Aquarium pix of two, four and six inch individuals. 
Bigger PIX: The images in this table are linked to large (desktop size) copies. Click on "framed" images to go to the larger size.

Pygocentrus piraya (Cuvier 1816), the San Francisco Piranha. South America; endemic to the Sao Francisco Basin of Brazil. To nearly thirteen inches in length (largest true Piranha). Aquarium photo. 

Bigger PIX: The images in this table are linked to large (desktop size) copies. Click on "framed" images to go to the larger size.

Serrasalmus rhombeus (Linnaeus 1766), formerly S. niger. The Black or Redeye Piranha. To more than 16 inches and 3 kgs.! S. America; Rio and Orinoco River basins.  Aquarium photo. http://fishbase.sinica.edu.tw/Summary/speciesSummary.php?ID=11970&genusname=Serrasalmus&speciesname=rhombeus

Serrasalmus spilopleura Kner 1858, Speckled Piranha. South America: Amazonas Basin, Guaporé River. To 21 cm. in length. pH range: 5.0 - 7.0; dH range: 18.0, temp. 23 - 28°C. Atlantis Aquarium, Long Island, NY pic. 

 

Bibliography/Further Reading: 

www.aquatiqterrors.com







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