Copper tetra
| Copper tetra | ||||||||||||
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Copper tetra ( Hasemania nana ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Hasemania nana | ||||||||||||
| ( Luetken , 1875) |
The copper tetra or silvertip tetra ( Hasemania nana , syn .: Tetragonopterus nanus , Hemigrammus nanus , Hasemania marginata ) is a peaceful schooling fish . In 1937 the now popular freshwater ornamental fish was first introduced to Europe.
distribution
It is native to São Francisco in southeastern Brazil and the headwaters of the Rio Purus . These waters have clear white or black water .
features
The male of the tetra , which is up to 5 cm long , is characterized by its shiny copper color, which gives the fish its name. The rear part of the slender body is traversed by a particularly pronounced black band in the tail area. The dorsal fin , anal fin and the forked caudal fin are bright white at the tips. The rather silvery, shiny female looks squat and is generally more subtle in color.
Aquaristics
The males often show pronounced territorial behavior at spawning time and take on a reddish color that can be clearly distinguished from the female. As an omnivore, the copper tetra does not make any special demands on nutrition, but is still happy about a varied diet.
Keeping and care
Since the copper tetra in nature lives in spring streams, it should have enough free swimming space in addition to protective planting.
Legal regulation in Austria
In Austria, the minimum requirements for keeping fish are defined in Regulation 486 in Section 7 and its Annex 5. See also the Wikipedia entry ornamental fish .
The following also applies specifically to copper tetra: At least 5 animals of this species must be kept and the following limit values must be observed:
| value | annotation | |
|---|---|---|
| Minimum size of the aquarium | 60 × 30 × 30 | Length × width × height in [cm] |
| Area for the water temperature | 22-28 | Degrees Celsius [° C] |
| Area for the water hardness | 0-15 | Degree of German total hardness [⁰dGH] |
| PH range | 5.0 - 8.0 | Acidity |
| Maximum value of nitrate | 50 | [mg / l] |
Individual evidence
- ↑ www.zierfischverzeichnis.de
- ↑ a b Rüdiger Riehl, Hans A. Baensch: Aquariums Atlas . Ed .: Hans A. Baensch. 15th edition. Mergus, Melle, Germany 2006, ISBN 3-88244-227-1 , pp. 264 .
- ↑ BGBl 486., 2nd Animal Husbandry Ordinance. Retrieved February 16, 2019 .
- ↑ BGBL II No. 486 Appendix 5, Minimum Requirements for Keeping Fish. Retrieved February 16, 2019 .
literature
- Günther Sterba : The world's freshwater fish. 2nd Edition. Urania, Leipzig / Jena / Berlin 1990, ISBN 3-332-00109-4 .
Web links
- Copper tetra on Fishbase.org (English)
- www.drta-archiv.de