|Genus:|| Iriatherina |
The threadfin rainbowfish or featherfin rainbowfish (Iriatherina werneri) is a rainbowfish, the only species in the genus Iriatherina. It is characterized by long beautiful fins, and is among the most attractive of the rainbowfishes.
It is native to freshwater swamps and demersal or thickly vegetated areas of flowing waters, in tropical northern Australia and New Guinea.
It grows up to 5 cm (2.0 in) in length, but this does not include the Threadfin's long tail. Sexing is easy by examining fins: males have larger, gaudier finnage than females. Males also have more intense colours. When reproduction takes place eggs are scattered among the leaves of submerged vegetation, and hatch after7-10 days.
The threadfin rainbowfish was described by Herman Meinkin in 1974 from types collected in Merauke, Irian Jaya, Indonesia.Meinken honoured the German aquarium fish trader Arthur Werner, who collected the type, in the specific name. The generic name is a combination of Iri referring to Irian Jaya and atherina, referring to the silverside genus Atherina as they were thought to be in the same family at the time of naming. Genetic studies have appeared to indicate that there may be significant genetic divergence between the different populations of threadfin rainbowfish that occur parapatrically in northern Queensland and in the Northern Territory which would mean these populations were different species. It is likely that the New Guinea populations will be shown to be third species.
In aquaria they are usually peaceful, they live preferably in groups of six or more. Because of their long fins they should obviously be kept in a tank without fin-nippers. They breed best in tanks without other species. The male courts the female by posturing in front of her repeatedly quickly raising then lowering the forward dorsal fin. The recommended male-to-female ratio is about 1:3, due to polygamous behavior of dominant male.
Threadfin rainbowfish do well in aquariums of 20 US gallons (76 L), however 30 US gallons (110 L) is preferred. They are best housed in a "species only" tank; meaning that the tank is reserved for the Threadfins alone. Because of their tiny mouths, they can be difficult to feed. They do well with live foods, such as baby brine shrimp, and the micrometre larval diets.
They prefer water that is soft to moderately hard, slightly acidic (pH 6.0–7.0), and with a temperature of 23–29 °C (73–84 °F).
Maylandia estherae is a haplochromine cichlid. It is a rock dwelling fish or mbuna from Lake Malawi. This fish, like most cichlids from Lake Malawi, is a mouthbrooder - females hold their fertilized eggs then fry in their mouths until they are released after about 21 days.
The rainbowfish are a family, Melanotaeniidae, of small, colourful, freshwater fish found in northern and eastern Australia, New Guinea, islands in Cenderawasih Bay and Raja Ampat Islands in Indonesia, and in Madagascar.
The red rainbowfish or salmon-red rainbowfish is a species of rainbowfish from Lake Sentani in Irian Jaya, Indonesia. Belonging to the family Melanotaeniidae, in the subfamily Melanotaeniinae, the Australian rainbowfishes. It is threatened in its native range, but easily bred in captivity and common in the aquarium trade.
The pearl gourami is a species of gourami native to Southeast Asia.
The threadfin acara, also known as Heckel's thread-finned acara, is a South American species of cichlid fish. It is the only member of the genus Acarichthys and is native to rivers in the Amazon and Essequibo basins in tropical South America, and has become established in southeastern Asia. It is sometimes found in the aquarium trade.
Cyrtocara moorii, commonly known as the hump-head, is a species of haplochromine cichlid endemic to Lake Malawi in east Africa where they prefer areas with sandy substrates. It can grow to a length of 20 centimetres (7.9 in) TL. The species is popular among aquarium keepers where it is known as the hump-head cichlid, blue dolphin cichlid, Malawi dolphin or simply as moorii. It is currently the only known member of its genus. The specific name honours the English cytologist and biologist John Edmund Sharrock Moore (1870-1947).
Pseudotropheus johannii or the bluegray mbuna is an African freshwater fish from the family Cichlidae.
The red-tailed silverside, or zona is a species of Madagascar rainbowfish endemic to the Mananjary River drainage in Madagascar. It is threatened by habitat loss and introduced species. It has often been confused with the related B. madagascariensis, which is common in the aquarium trade. In addition to meristics, the two can be separated by the exact colour pattern on their tail fin and the distinct red spot on the lower jaw of breeding male B. geayi. B. geayi was described in 1907 by Jacques Pellegrin from a type collected by the pharmacist and natural history collector Martin François Geay (1859-1910), who Pellegrin honoured with its specific name.
Axelrod's rainbowfish is a species of rainbowfish in the subfamily Melanotaeniinae. It is found in Papua New Guinea in the Yungkiri stream in the north western part of that nation. Typically its preferred habitat is a narrow stream with gentle moving, cloudy water surrounded by lush rainforest.
The glass blue-eye is a species of fish in the subfamily Pseudomugilinae. It is endemic to Papua New Guinea where it is only known to occur in a few small creeks adjacent to a 15–20 kilometres (9.3–12.4 mi) stretch of the Ok Tedi Mine supply road between the settlements of Kiunga and Tabubil in the Upper Fly River system close to the frontier with Irian Jaya. This species has a mainly transparent body with silvery gill covers and belly, there are black spots on the margins of the scales and there are black markings on the fins and lateral line, with the fins being shaded with yellow, with the exception of the transparent pectoral fins. It attains a standard length of 3 centimetres (1.2 in).This species was described by Gerald R. Allen in 1983 and its specific name honours the site biologist at the Ok Tedi Mine, David Balloch, for the support and assistance he gave Allen.
The Popondetta blue-eye or Popondetta rainbowfish, is a species of fish in the subfamily Pseudomugilinae. It is endemic to Papua New Guinea where it occurs at three localities around Popondetta in the east of the country. This species inhabits clear, fast flowing freshwater streams, although it has been reported from brackish water. This species was described in 1981 as Popondetta connieae by Gerald R. Allen from a typelocality of Auga Creek, about 5 kilometres (3.1 mi) south of Popondetta where Allen collected the 200 types along with Brian Parkinson. Allen gave it the specific name connieae to honour his wife, Connie, who normally prepared Allen's manuscripts for publication. This species is sought-after in the aquarium trade and is available in the European and Australian markets.
The electric blue hap is a species of cichlid fish endemic to Lake Malawi. It prefers to live in caves and crevices in rocky substrates. This species can reach a length of 20 centimetres (7.9 in) TL. It can also be found in the aquarium trade.
The Celebes rainbowfish is a species of sailfin silverside endemic to Sulawesi in Indonesia. It is the only known member of its genus.
The redtail splitfin, or redtail goodeid, is a species of goodeid fish from the family Goodeidae and subfamily Goodeinae. Like other members of Goodeinae, the redtail splitfin is native to Mexico and a livebearer. However, the goodeid mating system differs in several ways from the more common livebearing fish from the family Poeciliidae that includes guppies and swordtails. While no goodeid species is a very popular aquarium fish, the redtail splitfin is one of the most popular. Only the male has the red-orange tail for which it is named. Its specific name honours the collector of the type, Gustav Eisen (1847–1940) who was Curator of Marine Invertebrates at the California Academy of Sciences in San Francisco, California.
Pseudochromis steenei, also known as lyretail lottyback, is a saltwater fish from Indonesia that is occasionally kept in aquariums. The specific name honours the Australian naturalist and underwater photographer Roger C. Steene who assisted in the collection of the type specimen.
The green swordtail is a species of freshwater/brackish fish in family Poeciliidae of order Cyprinodontiformes. A live-bearer, it is closely related to the southern platyfish or 'platy' and can crossbreed with it. It is native to an area of North and Central America stretching from Veracruz, Mexico, to northwestern Honduras.
Melanotaenia duboulayi, the crimson-spotted rainbowfish, less commonly known as the Duboulay's rainbowfish, is a species of freshwater rainbowfish endemic to eastern Australia. M. duboulayi has also been kept in aquariums since the early 20th century, and is the original Australian rainbowfish.
The ornate rainbowfish is a species of rainbowfish endemic to an area in eastern Australia, where it is native to coastal regions and sandy offshore islands in southern Queensland and northern New South Wales. It is the only known member of its genus. It is a popular aquarium fish.
Kiunga bleheri is a species of blue-eyes from the subfamily Pseudomugilinae, part of the rainbowfish family Melanotaeniidae which is endemic to Papua New Guinea. It was described by Gerald R. Allen in 2004 from a type locality of Tare Creek at 11.5 kilometres (7.1 mi) from the central market of Kiunga on the Konkonda Road. and Allen coined the specific name in honour of the collector of the type, the tropical fish wholesaler Heiko Bleher.
Pseudomugil ivantsoffi is a species of blue-eye from the subfamily Pseudomugilinae, part of the rainbowfish family Melanotaeniidae. It is endemic to Western Papua in Indonesia. It was described in 1999 by Gerald R. Allen and Samuel J. Renyaan from types collected in southern Irian Jaya at two locations one a tributary of the Kopi River approximately 1 kilometre (0.62 mi) of the Tembagapura Road and from the mile 39 Camp of the Freeport Mining Company in 1995. They named the species in honour of the ichthyologist Walter Ivantsoff of Macquarie University in Sydney.