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The Krabi mouth-brooding betta, Betta simplex, is a species of gourami endemic to Krabi Province, Thailand. It inhabits karst springs and wetlands, where it lives amongst vegetation close to the banks. This species can reach a length of 8 cm (3 in). This species can also be found in the aquarium trade and
Bettas are anabantoids, which means they can breathe atmospheric air using a unique organ called the labyrinth. This accounts for their ability to thrive in low-oxygen water conditions that would kill most other fish, such as rice paddies , slow-moving streams , drainage ditches, and large puddles .
Fry harvesting, getting the brooding fish to open its mouth and release the fry, is important if the fry are to be reared artificially. In the case of endangered species, such as Asian arowana , harvesting may be supervised by an official to certify that the fish farm is a genuine producer of captive-bred fish.
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.
There is evidence that the genetic basis for aggression in betta fish is not exclusively sex-linked – a 2019 study found that female bettas of the fighting strain show significantly higher levels of aggression than their female wild-type counterparts, despite the fact that historically only male bettas have been used in fights and thus ...
This species can reach a standard length of 6.7 cm (2 + 5 ⁄ 8 in), though most are only about 5.5 cm (2 + 3 ⁄ 16 in). [2] Paradise gouramis were one of the first ornamental fish available to western aquarium keepers, [ 3 ] [ 4 ] having been imported 1869 to France by the French aquarium fish importer Pierre Carbonnier in Paris .
The zebra nerite snail is frequently sold to aquarists. These specimens are typically wild caught, since the snail is difficult to breed in captivity. This snail is typically sold as an algae eater as it will constantly scrape the glass, hardscape and substrate of the aquarium for algae with its rasping mouth. They are capable of surviving in ...
The buccal mass is the first part of the digestive system, and consists of the mouth and pharynx. The mouth includes a radula, and in most cases, also a pair of jaws. The pharynx can be very large, especially in carnivorous species. Many carnivorous species have developed a proboscis, containing the oral cavity, radula, and part of the ...