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 rosy barb is a subtropical freshwater cyprinid fish found in southern Asia from Afghanistan to Bangladesh.
The tiger barb or Sumatra barb, is a species of tropical cyprinid fish. The natural geographic range reportedly extends throughout the Malay Peninsula, Sumatra and Borneo in Indonesia, with unsubstantiated sightings reported in Cambodia. Tiger barbs are also found in many other parts of Asia, and with little reliable collection data over long periods of time, definite conclusions about their natural geographic range versus established introductions are difficult. Tiger barbs may sometimes be confused with Puntigrus anchisporus, Puntigrus navjotsodhii, or Puntigrus partipentazona, which are similar in appearance, the only differences being the slightly different stripe pattern and the number of scales these fish have.
The cherry barb is a tropical freshwater fish belonging to the family Cyprinidae. It is endemic to Sri Lanka, and introduced populations have become established in Mexico and Colombia. The cherry barb was named Puntius titteya by Paules Edward Pieris Deraniyagala in 1929. Synonyms include Barbus titteya and Capoeta titteya.
Pterophyllum is a small genus of freshwater fish from the family Cichlidae known to most aquarists as angelfish. All Pterophyllum species originate from the Amazon Basin, Orinoco Basin and various rivers in the Guiana Shield in tropical South America. The three species of Pterophyllum are unusually shaped for cichlids being greatly laterally compressed, with round bodies and elongated triangular dorsal and anal fins. This body shape allows them to hide among roots and plants, often on a vertical surface. Naturally occurring angelfish are frequently striped transversely, colouration which provides additional camouflage. Angelfish are ambush predators and prey on small fish and macroinvertebrates. All Pterophyllum species form monogamous pairs. Eggs are generally laid on a submerged log or a flattened leaf. As is the case for other cichlids, brood care is highly developed.
The zebra pleco is a species of catfish endemic to a small section of the Rio Xingu in Brazil. It occurs in the big bend area of the river, downstream from the town of Altamira, Para. It was first described in 1991. It gets its name from its black and white stripes, resembling the colouration of a zebra. This species grows to a length of 6.4 centimetres (2.5 in) SL. This species was exported from Brazil in 1987 for sale as aquarium fish. However, currently, the Brazilian government bans the export of certain fish species, including H. zebra.
The dwarf corydoras, dwarf catfish, tail spot pygmy catfish, or micro catfish is a tropical freshwater fish belonging to the subfamily Corydoradinae of the family Callichthyidae. It originates in inland waters in South America, and is found in the Amazon River and Paraguay River basins in Argentina, Bolivia, and Brazil. The specific epithet hastatus means with a spear, in reference to the spearhead-like spot on the tail root.
The emerald catfish is a tropical freshwater fish belonging to the Corydoradinae sub-family of the family Callichthyidae native to the Amazon Basin in South America. It has traditionally been known as Brochis splendens. The fish has appeared on a stamp in Brazil.
The bloodfin tetra is a species of characin from the Paraná River basin in South America. The bloodfin is a relatively large tetra, growing to 5.5 cm. Its notable feature is the blood-red colouration of the tail, dorsal, anal and adipose fin, while the body is silver in color.
The Buenos Aires tetra is a tropical fish from South America. It was first observed in the wild in 1907, by Carl H. Eigenmann.
Hemigrammus erythrozonus, commonly known as the glowlight tetra, is a small tropical fish from the Essequibo River, Guyana, South America. It is silver in colour and a bright iridescent orange to red stripe extends from the snout to the base of its tail, the front of the dorsal fin being the same color as the stripe. Other fins are silver to transparent. The glowlight tetra is a peaceful, shoaling fish. It is larger than the neon tetra, and its peaceful disposition makes it an ideal, and popular, community tank fish. It should be kept with similar sized, non-aggressive species. Hemigrammus gracilis is a senior synonym. The red-line rasbora of Malaysia and Indonesia has markings and coloring very similar to H. erythrozonus, but is a member of family Cyprinidae, not a close relative.
Mikrogeophagus altispinosus is a species of fish endemic to the southern Amazon River basin in Brazil and Bolivia. The species is part of the family Cichlidae and subfamily Geophaginae. It is a popular aquarium fish, traded under the common names Bolivian butterfly, Bolivian ram, Bolivian ram cichlid, and ruby crown cichlid.
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.
The redeye tetra, is a species of tetra from the São Francisco, upper Paraná, Paraguay and Uruguay river basins in eastern and central South America. This freshwater fish is commonly kept in aquariums and bred in large numbers at commercial facilities in Eastern Europe and Asia. The redeye tetra is one of the more popular aquarium fish due to their schooling capability.
The snakeskin gourami is a species of gourami native to Southeast Asia. Prior to the merging of Belontidae to the family Osphronemidae, the snakeskin gourami was regarded as the largest member of its family. It is still the largest species in its genus and subfamily.
Laetacara curviceps, the Flag acara, Dwarf flag cichlid, is a species of cichlid that lives in slow-moving rivers and streams as well as ponds and lakes of the Amazon Basin. This species can reach a total length of 10 cm (4 in).
Nannostomus trifasciatus,, commonly known as the three-lined or three-stripe pencilfish, is a freshwater species of fish belonging to the characin family Lebiasinidae. They are popular in the aquarium trade due to their small size, beautiful color pattern, and relative hardiness.
The honey gourami is a species of gourami native to India and Bangladesh.
The true Kuhli loach, occasionally referred to as eel loach, is a small eel-like freshwater fish belonging to the loach family (Cobitidae). They originate from the island of Java in Indonesia. This snake-like creature is very slender and nocturnal.
Metynnis argenteus is a species of serrasalmid fish endemic to the Tapajós River Basin in Brazil. It is one of the species known in the aquarium trade as the "silver dollar". M. argenteus is generally considered the archetypal silver dollar, although it and the very similar M. hypsauchen frequently have been confused.
