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.
Barbodes semifasciolatus, the Chinese barb, is a species of cyprinid fish native to the Red River basin in southeast Asia where they occur in fresh waters at depths of 5 metres (16 ft) or less. The captive variant popularly known as the gold barb or Schuberti barb is an extremely popular aquarium fish.
The rosy barb is a subtropical freshwater cyprinid fish found in southern Asia from Afghanistan to Bangladesh.
The black ruby barb or purplehead barb is a tropical cyprinid fish endemic to Sri Lanka, where it occurs in forested streams from the Kelani basin to the Nilwala basin. They are found in streams on hills around 1000 ft in elevation. The brightly colored population introduced to Mahaweli at Ginigathena, Sri Lanka, is said to have diminished in number due to the aquarium export trade.
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 convict cichlid is a fish species from the family Cichlidae, native to Central America, also known as the zebra cichlid. Convict cichlids are popular aquarium fish and have also been the subject of numerous studies on fish behaviour.
The serpae tetra, also known as the red minor tetra, jewel tetra or callistus tetra, is a species of tetra, a tropical freshwater fish of the characin family of order Characiformes. It is native to the Amazon River drainage in Brazil, Peru, Paraguay, Bolivia and northern Argentina. The fish can be found in slow moving or still backwater including, ponds, small lakes, and streams. In the wild, it forms aggregations around vegetation and tree roots, and thrives when the water temperature is 22–27 °C (72–81 °F).
The harlequin rasbora is a small fish in the family Cyprinidae. The species became an instant favorite among aquarists after its introduction in the early 1900s and is the best known and most widely kept species among the rasboras. In 1935, an image of a trio of harlequin rasboras, stamped in 14k gold, would grace the cover of the first edition of William T. Innes's classic Exotic Aquarium Fishes and would remain so through all 19 editions.
The croaking gourami is a species of small freshwater labyrinth fish of the gourami family. They are native to still waters in Southeast Asia and are distributed worldwide via the aquarium trade. Croaking gouramis are capable of producing a "croaking" noise using their pectoral fins.
The swamp barb, also known as chola barb, is a species of tropical freshwater fish belonging to the subfamily Cyprininae of the family Cyprinidae. It originates in inland waters in Asia, and is found in Pakistan, India, Nepal, Bangladesh, Sri Lanka, Bhutan, and Myanmar.
The pygmy gourami, also known as the sparkling gourami, is a freshwater species of gourami native to Southeast Asia.
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.
Corydoras pygmaeus, or the pygmy corydoras or pygmy catfish is a tropical and freshwater fish belonging to the subfamily Corydoradinae of the family Callichthyidae. It originates in tropical inland waters in South America, and is found in the Madeira River basin in Brazil.
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.
Corydoras julii is a small freshwater catfish native to eastern Brazil. It is often confused with Corydoras trilineatus, the three stripe corydoras. Corydoras julii are small, peaceful shoaling fish, and are typically kept in groups in captivity.
The thick-lipped gourami is a species of gourami native to Southeast Asia, and is a popular aquarium fish.
The rainbow shark is a species of Southeast Asian freshwater fish from the family Cyprinidae. It is also known as the ruby shark, red-fin shark, red-finned shark, rainbow sharkminnow, green fringelip labeo, whitefin shark and whitetail sharkminnow. It is a popular, semi-aggressive aquarium fish. Unlike true sharks, which belong to the Chondrichthyes lineage, the rainbow shark is an actinopterygiian.
The White Cloud Mountain minnow is a hardy species of freshwater fish and coldwater fish often kept in an aquarium. The species is a member of the carp family of the order Cypriniformes, native to China. The White Cloud Mountain minnow is practically extinct in its native habitat, due to pollution and tourism. It was believed to be extinct for over 20 years in 1980, but an apparently native population of this fish was discovered on Hainan Island, well away from the White Cloud Mountain. They are bred in farms and are easily available through the aquarium trade. However, inbreeding in farms has led to genetically weak stock that is vulnerable to disease and prone to physical deformities.
The redside barb or two-spot barb is a species of ray-finned fish in the genus Puntius. It is found in India and Sri Lanka. It was identified and classified by Pieter Bleeker in 1863.
The Odessa barb is a species of cyprinid fish known from Central Myanmar, where it is known to occur in an artificial pond above the Anisakan Falls and also from the lower Chindwin River. For many years it has been known to the aquarium hobby, where it has frequently been confused with the less colourful ticto barb, but it was only described scientifically in 2008.
