African large-scale tetra
| African large-scale tetra | ||||||||||||
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African large scale tetra ( Arnoldichthys spilopterus ) |
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Arnoldichthys | ||||||||||||
| Myers , 1926 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Arnoldichthys spilopterus | ||||||||||||
| ( Boulenger , 1909) |
The African large-scale tetra ( Arnoldichthys spilopterus , syn .: Petersius spilopterus ) or Arnold's red-eye tetra is a freshwater fish of the order of the tetra-like species, about eight centimeters in size .
features
African large-scale tetra reach a maximum body length of 8 cm. In males the anal fin is striped red-yellow-black, while the females have a black point on the anal fin.
Fin formula : dorsal 2/10, anal 3/11.
Occurrence
The African large scale tetra occurs in peat-rich rivers in Cameroon and Lagos up to the Niger Delta . He prefers waters that have a slightly acidic pH and water temperatures of 23 to 28 ° C.
Way of life
African large scale tetra are carnivores and peaceful schooling fish. They occur in groups of 10 or more animals. They are typical free spawners , which means that, unlike the foam nest builders or the mouth brooders, they simply release their eggs into the open water. About 800 to 1000 eggs that are about 1.2 mm in size are laid. The larvae hatch after 36 hours at the latest. The young animals spend the first time in a swarm.
literature
- Günther Sterba : The world's freshwater fish. 2nd Edition. Urania, Leipzig / Jena / Berlin 1990, ISBN 3-332-00109-4 .
Web links
- African large-scale tetra on Fishbase.org (English)
- Arnoldichthys spilopterus in the ornamental fish directory
- Arnoldichthys spilopterus at aqua4you
- Arnoldichthys spilopterus in the Red List of Threatened Species of the IUCN 2013.1. Posted by: Olaosebikan, BD & Lalèyè, P., 2006. Retrieved September 3, 2013.