Who are labyrinth fish and why are they so called? This name was given to them for the so-called “labyrinth” of passages pierced by blood vessels, which is located on top of their Gill arches. This system of channels was obtained by fish as a result of evolution. The thing is that the homeland of the labyrinth is a wetland and rice fields of Southeast Asia. Initially, the fish were forced to live in dirty, muddy reservoirs, almost without oxygen, which provoked the appearance of such a unique organ. With its help, individuals of some species are able to live without water for up to 8 hours. However, the condition for this is constant access to atmospheric oxygen.
It is due to its unpretentiousness to oxygen labyrinth fish have gained great popularity among novice aquarists. After all, they do not need to buy large and expensive aquariums, install compressors for air supply. These fish can quite normally live in small volumes. Continue reading