Thayeria boehlkei
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| Blackline penguinfish | ||||||||||||||||
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 Thayeria boehlkei
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| Thayeria boehlkei Weitzman, 1957 |
Thayeria boehlkei is a species of characin fish endemic to the Amazon river basin and Araguaia river, in Peru and Brazil respectively.[1] The species is popular with aquarium hobbyists where it is traded under a variety of common names including blackline penguinfish, blackline Thayeria, hockey-stick tetra, penguin fish and penguin tetra.[1][2][3]
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[edit] Misidentification
The species was previously misidentified as Thayeria sanctaemariae[4] and Thayeria obliqua. T. obliqua is a superficially similar, but different species of Thayeria, while T. sanctaemariae, is a synonym of T. obliqua.[1]
[edit] Diet
The species feeds on worms, small insects and crustaceans.[1]
[edit] Reproduction
In captivity, this normally schooling species, forms pairs that scatters their many adhesive eggs amongst plants. Clutch size is very large and may be up to 1000 eggs, the embryos of which are black in colour[4][5] The eggs hatch in ca. 20 hours and are free-swimming after 4 days.[3]
[edit] In the aquarium
The species is best kept in groups, to allow the species to school, in freshwater, tropical, community aquaria with other peaceful, non-predatory fishes.[3][5][6] This fish is tolerant of pH, but prefer acidic water for breeding. [6]
[edit] See also
[edit] References
- ^ a b c d "Thayeria boehlkei". FishBase. Ed. Ranier Froese and Daniel Pauly. Apr 2007 version. N.p.: FishBase, 2007.
- ^ Mills D (1993) Aquarium Fish Harper Collins ISBN 0-7322-5012-9
- ^ a b c Axelrod HR, Vorderwinkler W (1995) Encyclopedia of tropical fishes. 30th edition. Tropical Fish Hobbyist Publications, USA.
- ^ a b McInerny D, Gerard G (1958) All about tropical fish. 2nd Edn. George Harrap & Co. London. p. 276-277.
- ^ a b Riehl, Rüdiger. Editor.; Baensch, HA (1996. 5th Edn.). Aquarium Atlas. Germany: Tetra Press. ISBN 3-88244-050-3.
- ^ a b Axelrod, Herbert, R. (1996). Exotic Tropical Fishes. T.F.H. Publications..
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