The biggest fish
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Underwater world filled with unusual creatures. Your attention predstavlyaem top 13 mysterious of marine animals. Leafy sea dragon is one of the types of seahorses, whose fins look like foliage.…

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Sea wasp Jellyfish, sea anemones, coral polyps, annelid worms, sea cucumbers, sea urchins, starfish, sponges can "burn" or stabbing of a person in contact with them. The range of consequences…

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Aquarium fish — fish that are bred in aquariums, usually, decorative purposes.

The majority of aquarium fish in natural conditions are inhabitants of tropical and subtropical freshwater reservoirs, for the life of them requires a relatively high temperature of water, approximately corresponding to the temperature of the indoor aquarium.

For the most part, aquarium fish characterized by bright decorative painting, fancy body shape and small size. Particularly popular and most long-term in the aquarium bred varieties of goldfish. Usually belong to aquarium fish from groups Cypriniformes (family characinidae, hemiodontidae, anostomidae, carp, kalitidu, loricariidae), Perciformes (suborder okunevaya and the labyrinth), carpesomediem (viviparous and ikromechuschie form). The most widely rasprostranena among fans guppy, Danio, barbs, angelfish, catfish, neons, nannostomus, etc.

Observation of aquarium fish is of great educational interest for both adults and children. Children taking care of fish and watching them acquire research skills, skills for regular employment, they are brought up ethical needs to take care of living beings, developing positive emotional connection and psychological comfort.

Aquarium fish play an important role in research on genetics, biochemistry and bionics. For example, in guppies(Lebistes reticulatus) and medaka (Orizias latipes) carried out an interesting genetic work. In the result of distant hybridization displayed many new breeds of aquarium fish.

Folk classification of aquarium fish

The list below contains the names of the most popular groups of aquarium fish. These names often come from names of species, genus or family. It does not always have a clear correspondence between biological groups and names used by aquarists.

The main criterion for the selection of the group – having a keen representatives of this group.

Viviparous (Viviparus)

Several species of small fishes of the family Bellieve, each of which has its fans. Each of them has a huge number of breeding forms and hybrids.

Guppies or gupti:

-The sword and the little platyptilia (genus Xiphophorus)

-Mollies or platys – larger shirokorulonnye types

-Xenocara popular fish from close family Goodeve

Other types of zimorodok less common.

Characins: (Characinodidei)

Suborder of the order cyprinoid fishes (Cypriniformes). The most popular:

-Neon (innesi Hyphessobrycon, Paracheirodon innesi Myers, 1936)

-Neon red (Paracheirodon axelrodi Schultz, 1956)

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