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Corydoras arcuatus, Elwin, 1939
Skunk Corydoras or Arched corydoras


Origin:South-America, Peru, Loreto, Rio Pacaya, tributaries of Rio Ucayali and Rio Yavari. Ecuador, Napo, Rio Yasuni, Rio Napo tributary. Colombia, Rio Caqueta, Rio Amazonas. Brazil, Amazonas, Rio Purus system & Rio Ipixuna.

Etymology: Arcuatus, bent, referring to the bent stripe over the body.

Synonyms:None.

First import:Unknown, the fish was originally described from aquarium specimens

Description:Bodycolor yellowish beige with a light goldgreen shine, long black stripe over the body, spines melinated, rest of the fins transparent.Occasionally the black stripe looses some of it's intensity, especially between the eye and the dorsal fin

Care:A 60 cm tank with good filtration, although no strong current is neccessary for the animals well-being. Wildcaught specimens need lots of hideouts to reduce stress, and time to get used to the tank. After that they can be kept easily in a tank. It's better for the fish if they are kept in large groups of 8 or more fish.Corydoras arcuatus

Temperature: 20-26

Feeding: As described above wildcaught specimens are very shy and easily scared fish. If you decide to keep them in a community tank make sure they get enough to eat.

Size:6.0 cm

pH: 6.5-7.0 Hardness: 2-20

Breeding: Feed lots of live food(artemia, daphnia, mosquitolarvae) for one or two weeks. Do a 40-50% waterchange with aged water which should reduce the watertemperature 5 degrees or more, temperatures of 16 degrees are not a problem. . Do this every other day for a period, until they start to breed. Large eggs are produced. As described in the general section this may just be a seasonal issue.

Prices: Netherlands 5 Euro for normal fish. Occasionally juveniles are for sale for 3 Euro.

Additional: This seems to be the short roundsnouted corydoras. It occurs sympatrically with it's longsnout version C. narcissus

Picture references: E. Naus

ReferencesHierronimus, H. (1997): Ihr Hobby: Corydoras Pantzerwelse. Bede Verlag, Ruhmannsfelden, Germany.:Lambourne, D. ((1995): Corydoras catfish, An Aquarist's Handbook. Blandford, London, UK.Hoedeman, J. J.(1968): Aquariumvissen encyclopedie 1. Elsevier Nederland B. V., Amsterdam, The Netherlands.

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