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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. Betta fish will sleep on their side, upside down, with ...
The best known Betta species is B. splendens, commonly known as the Siamese fighting fish and often kept as an aquarium pet. Characteristics All Betta species are small fishes, but they vary considerably in size, ranging from under 2.5 cm (1 in) total length in B. chanoides to 14 cm (5.5 in) in the Akar betta ( B. akarensis ).
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. [3]
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 .
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Betta patoti, sometimes known as the tiger betta or zebra betta, [1] [2] is a species of gourami. It is a freshwater fish native to Asia, where it occurs in the southern part of East Kalimantan on the island of Borneo in Indonesia. The species reaches 10.7 cm (4.2 inches) in total length and is known to be a facultative air-breather. [3]
Betta albimarginata is a species of betta fish, endemic to the island of Borneo where it is only found in the Indonesian province of Kalimantan Timur. It inhabits the shallows (5 to 10 cm (2.0 to 3.9 in)) of forest streams amongst vegetation and debris along the shores. This species grows to a length of 2.8 cm (1.1 in). [3]
Betta fusca, [1] commonly known as the dusky betta, is a species of gourami. It is a freshwater fish native to Asia , where it occurs on the island of Sumatra in Indonesia . The species reaches 8.2 cm (3.2 inches) in total length and is known to be a mouthbrooder and a facultative air-breather.