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The Siamese fighting fish (Betta splendens), commonly known as the betta, [2] is a freshwater fish native to Southeast Asia, namely Cambodia, Laos, Myanmar, Malaysia, Indonesia, Thailand, and Vietnam. [3][4] It is one of 76 species of the genus Betta, but the only one eponymously called "betta", owing to its global popularity as a pet; Betta ...
The peaceful betta or crescent betta (Betta imbellis) is a species of gourami native to Southeast Asia. Betta imbellis has a pair of suprabranchial chambers that each house a labyrinth organ, a complex bony structure lined with thin, highly vascularised respiratory epithelium. The labyrinth organ is a morpho‐physiological adaptation that ...
Marine fish can produce high numbers of eggs which are often released into the open water column. The eggs have an average diameter of 1 millimetre (0.039 in). The eggs are generally surrounded by the extraembryonic membranes but do not develop a shell, hard or soft, around these membranes.
Betta pallifina are a mouthbrooding species of betta. The male is the caretaker, holding the fry in his mouth for up to three weeks. In captivity, these fish are very easy to breed. During spawning, which can take several hours, the male embraces the female. Fertilized eggs are gathered into the male's mouth and he retreats to brood the fry ...
The black tetra is also known as the black skirt tetra. The female black tetra is more robust and larger than the male. [29] Black morpho tetra: Poecilocharax weitzmani: 4 cm (1.6 in) Bleeding heart tetra: Hyphessobrycon erythrostigma: 6.5 cm (2.6 in) The bleeding heart tetra is distinguished by the small red spot on both sides of the fish.
Gouramis, or gouramies / ɡʊˈrɑːmi /, are a group of freshwater anabantiform fish that comprise the family Osphronemidae. The fish are native to Asia —from the Indian Subcontinent to Southeast Asia and northeasterly towards Korea. The name "gourami", of Indonesian origin, is also used for fish of the families Helostomatidae and Anabantidae.
Betta trifasciata Bleeker, 1850. The spotted betta or Java fighting fish (Betta picta) is a species of gourami endemic to Indonesia where it inhabits relatively cool, 22‒25 °C (72‒75 °F), highland streams of Java. [2] [3] [4] In 1967, D. S. Johnson reported the species to be common in blackwaters of southern Malaya.
Initial development is rapid: the eggs hatch after one day, and the fry are free-swimming two days thereafter. The kissing gourami does not care for its young. [2] Adults migrate through the rivers to shallow lagoons or into flooded forests to spawn. A female starts mating and the male simultaneously shed the eggs and sperm to the outside.