The black neon tetra is a freshwater fish of the characin family (Characidae) of the order Characiformes. It is native to the Paraguay basin of southern Brazil. They are often found in the aquarium trade.
The Serrasalmidae (serrasalmids) are a family of characiform fishes, recently elevated to family status. It includes more than 90 species. The name means "serrated salmon family", which refers to the serrated keel running along the belly of these fish. Fish classified as Serrasalmidae are also known by these common names: pacu, piranha, and silver dollar. These common names generally designate differing dental characteristics and feeding habits.
Thayeria boehlkei is a species of characin fish endemic to the Amazon river basin and Araguaia river, in Peru and Brazil respectively. The species is popular with aquarium hobbyists where it is traded under a variety of common names including blackline penguinfish, blackline thayeria, hockey-stick tetra, penguin fish and penguin tetra.
The diamond tetra is a small freshwater fish of the characin family of order Characiformes. It is found in and around Lake Valencia in Venezuela, South America.
George Sprague Myers was an American ichthyologist who spent most of his career at Stanford University. He served as the editor of Stanford Ichthyological Bulletin as well as president of the American Society of Ichthyologists and Herpetologists. Myers was also head of the Division of Fishes at the United States National Museum, and held a position as an ichthyologist for the United States Fish and Wildlife Service. He was also an advisor in fisheries and ichthyology to the Brazilian Government.
The ember tetra is a freshwater fish of the characin family of order Characiformes. It is native to the Araguaia River basin of Brazil and was discovered in 1987 and named in honor of the fish explorer Heiko Bleher's mother.
Nematobrycon palmeri, commonly known as the emperor tetra, is a species of characid fish found in the Atrato and San Juan river basins in western Colombia. It was first imported in the aquarium trade to the United States in 1960 and has since become well established.
Boehlkea fredcochui, also known as the Cochu's blue tetra is a species of characin. Its natural range is in the Amazon Basin. It is commonly kept as an aquarium fish.
Knodus borki is a species of characin endemic to Peru, where it is found in the vicinity of Iquitos. It is found in a freshwater environment within a benthopelagic depth range. This species is native to a tropical environment. It lives in the habitats of rivers, streams, and tributaries.
The royal tetra is a species of characin endemic to Brazil, where it is found in tributaries of the Aripuanã River. It was once the sole member of its genus.
Myleus is a genus of serrasalmids from South America, where found in the Amazon, Orinoco and São Francisco basins, as well as river basin of the Guiana Shield. They are found in rivers with moderately or fast-flowing water, including rapids. They are primarily herbivores, but also take some animal matter. Depending on the exact species, they reach up to 12–42 cm (0.4–1.4 ft) in standard length, and the adult males have a double-lobed anal fin and filamentous extensions on the dorsal fin. Their strong teeth means that larger individuals can inflict severe bites on humans.
Myloplus is a genus of freshwater fish in the family Serrasalmidae found in tropical and subtropical South America, where they inhabit rivers and streams. They are primarily herbivores, but also take some animal matter. Depending on the exact species, they reach up to 16–56 cm (0.5–1.8 ft) in standard length. Adult males have a double-lobed anal fin and filamentous extensions on the dorsal fin, and both sexes can be brightly colored when breeding.
Anostomus ternetzi is a fish in the family Anostomidae.
Petitella bleheri is a species of characin found in Amazon Basin in Brazil and Peru. One of three species called rummy-nose tetra, but is also called firehead tetra according to FishBase. Reaching a standard length of 2 in (5 cm) it is a common species found in the aquarium trade although often potentially hybridised with the other collective rummy-nose tetra species Petitella rhodostomus and Petitella georgiae; the false rummy-nose tetra.
Hyphessobrycon bentosi, the Bentos tetra, ornate tetra or candy cane tetra, is a species of characin fish found in sluggish tributaries at the Amazon Basin in Brazil and Peru. Occasionally, it makes its way into the aquarium trade. It has often been confused with the rosy tetra.
Myloplus arnoldi is a medium to large omnivorous fish of the family Serrasalmidae from South America, where it is found in the Amazon, Xingu and Tocantins River basins. It can grow to a length of 33 cm (13 in). They are also called the silver dollar and are one of the fish referred to as "silver dollars". These fish are capable of delivering serious bites to humans.
Myloplus ternetzi is a medium to large omnivorous fish of the family Serrasalmidae from South America, where found in the east and the northeastern Guiana Shield rivers. It and can grow to a length of 23.1 cm (9.1 in).
Myloplus zorroi is a medium to large omnivorous fish of the family Serrasalmidae from Brazil.
Acnodon normani, the sheep-pacu, is a species of serrasalmids found in South America. It is found in the Amazon, the Xingu and Tocantins River basins in Brazil. This species reaches a length of 19.9 cm (7.8 in).
Acnodon senai is a species of serrasalmids found in South America. It is found in the Jari River basin in Brazil. This species reaches a length of 13.2 cm (5.2 in).
