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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 allows the B. imbellis to extract oxygen from air. This adaptation allows the species to persist in extreme ...
A betta fish's lifespan can be impacted by the care it receives, WebMD reports. Bettas may live longer if their tank is clean, the environment is calm and their diet is healthy.
Betta fish can exhibit unusual sleep behaviors, often resulting in new betta owners assuming that their betta fish has died. In an aquarium, betta fish sleep anywhere in the tank they feel comfortable, including at the bottom on the substrate, floating at the mid-level, or at the surface.
A useful distinction is that, while the generic name Betta is italicized and capitalized, when used as a common name it is usually neither italicized nor capitalized. [5] The common name of B. pugnax, for example, is thus Penang betta. Betta splendens, the Siamese fighting fish, is often referred to simply as a "betta" in the U.S.
As labyrinth fish, Betta mahachaiensis have a pair of suprabranchial chambers that each house an air-breathing organ known as the labyrinth organ, a complex bony structure lined with thin, highly vascularised respiratory epithelium. The labyrinth organ is a morpho-physiological adaptation that allows labyrinth fish to extract oxygen from air.
The Krabi mouth-brooding betta is an oblong fish with rounded fins, growing to a length of about 8 cm (3 in). The basic colour is yellowish-brown or greyish-brown with three faint longitudinal stripes. The gill-cover has a bluish-green patch and the fins have a blue iridescence. The pelvic fins are short and the anal fin long, with a dark margin.
Betta unimaculata, the Howong betta, is a species of labyrinth fish endemic to the island of Borneo where it is only known from the eastern portion of the island. This species grows to a length of 12.6 centimetres (5.0 in) TL, one of the largest known species of Betta. This species is also found in the aquarium trade. [2]
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 .