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Headstander

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Species of fish
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Anostomus anostomus, (striped headstander)

A headstander is any of several species of South American fish, including Anostomus ternetzi, Anostomus anostomus (family Anostomidae) and members of genus Chilodus from the family Chilodontidae. The name derives from their habit of swimming at a 45° angle, head pointed downwards, as if "standing on their heads".

About

Marbled headstander

Headstanders are a group of freshwater fishes that live in streams of South America. Some species, such as Chilodus punctatus and C. gracilis, are common aquarium fishes as well. In nature, they are predominantly found in shallow streams with strong currents and a lot of algae, which they feed off of. They prefer slightly acidic water with medium hardness. The headstander will eat almost any kind of food, but mostly enjoy hair algae. Some headstanders can reach up to 12 cm (4 3/4 inches) in length. They tend to be very active, sensitive to shadows, and like to jump. They also have a tendency to be slightly aggressive. In aquaria, they are most peaceful when kept as a single specimens or in groups of more than 6.

References

  1. ^ Babcock, L. E. (2024). "Replacement names for two species of Orthacanthus Agassiz, 1843 (Chondrichthyes, Xenacanthiformes), and discussion of Giebelodus Whitley, 1940, replacement name for Chilodus Giebel, 1848 (Chondrichthyes, Xenacanthiformes), preoccupied by Chilodus Müller & Troschel, 1844 (Actinopterygii, Characiformes)". ZooKeys (1188): 219–226. doi:10.3897/zookeys.1188.108571. PMC 10790574. PMID 38230382.
  2. ^ Isbrücker, I. J. H.; Nijssen, H. (1988). "Review of the South American characiform fish genus Chilodus, with description of a new species, C. gracilis (Pisces, Characiformes, Chilodontidae)". Beaufortia. 38 (3): 47–56.
  3. "Tropical Fish : Odd Ball & Miscellaneous : Spotted Headstander - Tropical Fish By Post.co.uk". Tropical Fish by Post. Archived from the original on 25 January 2013. Retrieved 12 April 2013.
  4. "Headstander, Anostomus ternetzi, Red Mouth Headstander Fish Guide". Animal-World. Retrieved 12 April 2013.


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