The Macropodusinae are a subfamily of freshwater anabantiform fishes in the gourami family Osphronemidae, which includes the paradisefish, fighting fish and licorice gouramis. Like all members of the family, these are air breathing fishes that frequently inhabit oxygen poor environments hostile to other fishes (the licorice gouramies of Parosphromenus inhabit well-oxygenated, but extremely soft and acidic, blackwater streams). They are native to Asia, from Pakistan and India to the Malay Archipelago and north-easterly towards Korea. Many members are common aquarium fish; by far the most famous
Subfamily
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The Macropodusinae are a subfamily of freshwater anabantiform fishes in the gourami family Osphronemidae, which includes the paradisefish, fighting fish and licorice gouramis. Like all members of the family, these are air breathing fishes that frequently inhabit oxygen poor environments hostile to other fishes (the licorice gouramies of Parosphromenus inhabit well-oxygenated, but extremely soft and acidic, blackwater streams). They are native to Asia, from Pakistan and India to the Malay Archipelago and north-easterly towards Korea. Many members are common aquarium fish; by far the most famous is the Siamese fighting fish, Betta splendens (note that the domesticated form is very likely a hybrid). Most (not all) of the 70+ betta species are paternal mouthbrooders; the remaining members of the subfamily are bubblenesters like most osphronemids.
The subfamily was originally named Macropodinae but this name was adjudged to be a junior homonym of the mammalian family Macropodidae, the kangaroos and wallabies, and the name was changed by ICZN Opinion 2058 to Macropodusinae.
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