Monday, November 14, 2011

Akantodoras star (Acanthodoras spinosissimus) Family: catfish Doradidae

Acanthodoras spinosissimus Family: catfish Doradidae
The native land Akantodoras star (Acanthodoras spinosissimus) is the South America a river basin of Guapore. These small fishes publish specific sounds a bit similar on croak. They help fishes to find to themselves the partner, and also to warn about danger.

The trunk acanthodoras spinosissimus is slightly extended at length,
wide and flat, narrowed to a tail in the field of a back fin. A head large, a mouth final. There are three pairs moustaches. Firm bone plates, close more than half of side (are absent only from above and from below a tail stalk). The back fin is supplied by a teeth, fatty small, tail has the roundish form. The basic окрас trunks dark brown. Along a body acanthodoras spinosissimus pass light longitudinal strips: the first on a side from an eye and prior to the beginning of the tail fin, the second - along a back. On a trunk dark brown stains are scattered. The paunch and the bottom part of a head is light brown colour with yellow rough lines and light points around an anal fin. Unpaired and belly fins dark brown with 2-3 white cross-section strips. Sexual differences: Short moustaches at the male brownish with light rings, a paunch with light brown stains, at a female a paunch brown, short moustaches light yellow. At length acanthodoras spinosissimus can reach 15 see.

Acanthodoras spinosissimus - a peaceful small fish. Activity starts to show with approach of twilight.

Acanthodoras spinosissimus gets on with various kinds of fishes. Live in the bottom sheets of water.

The aquarium is necessary for the maintenance acanthodoras spinosissimus with volume from 100 l with dense thickets of live plants and various shelters (snags, caves from stones etc.). Prefers the muffled illumination and a thick layer of earth. In it it willingly rummages in food searches. Parametres of water for the maintenance acanthodoras spinosissimus: rigidity 2-20 °, рН 6.0-7.0, temperature 20 - 26°С. The filtration, aeration and weekly substitution to 30 % of volume of water are necessary.

Acanthodoras spinosissimus in food uses a dry, live and vegetative forage (20-30 % - the seaweed, the scalded salad, spinach, cabbage).

The aquarium is necessary for spawning acanthodoras spinosissimus with the muffled illumination in length from 60 sm and various shelters.
On a bottom establish a separator grid. On it stack synthetic fibres (it is possible to use rough to a bast). Water is necessary for using old with addition of the fresh. Parametres: rigidity to 10 °, рН 6.0 - 7.0, temperature 26 - 28°С. The female throws to 1000 rigid berries which are pasted to threads bast. During spawning in water plentiful sexual products are allocated and to raise an exit fry water it is necessary to change (add in water to 5 mg/l methylene a blue and 2 g/l table salt). The incubatory period lasts 24-48 hours. To float and eat fry acanthodoras spinosissimus begin for 4-6 days. A starting forage: nauplii a Cyclops.

Sexual maturity acanthodoras spinosissimus reaches non-uniformly: females are elderly - 1,5 years, males in 3 years.

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