The species is native to South America (Venezuela, Trinidad, and Argentina). In general, Bronze corydoras occur mostly in shallow, clean or muddy pools, in margins of ponds and streams covered with plants, stagnant waters with soft bottoms (sand) but also inhabits slightly running waters. The water has a high amount of tannin due to the decomposition of leaves and wood that makes the water tea-colored (an indication of soft and acidic habitat). Furthermore, Corydoras
Even though Corydoras breath with their gills, they also breathe air from the surface intestinally. The surface air gets stored by the corydoras in the thin walls of intestine’s posterior part. As a result of the modification and vascularization of the posterior intestine, makes the organ well suited for gas exchange.
(Immunohistochemical and ultrastructural evidence of functional organization along the Corydoras
The species have an average size of 2.7 inches (7 cm) with females being insignificantly bigger than males and with a larger abdominal region. The species have a lifespan of 5 years, but with the right conditions they may live up to 7 years.
(Axillary glands in the armored catfish Corydoras
That nocturnal catfish is an excellent choice for beginners because of its hardiness, active but peaceful temperament. It’s advised to keep the species at least in a group of 5 corydoras and more due to their schooling behavior. In nature, the species usually live in shoals of 20-30. Because of their peaceful temperament corydoras are compatible in community tanks with many species (peaceful) such as tetras.
Because of the natural habitat of Corydoras
An aquarium with 51 liters of water(13,5 gallons) is suitable for a shoal of 5-6 bronze Corydoras. Although plants are not usually a characteristic of corydoras
Many beginners use the species to clean the bottom from the leftovers of other fish in the aquarium but like all animals need a proper diet. Some even think that corydoras are coprophagous which is a myth. Corydoras
During breeding conditions, they chase each other around the tank with the male displaying his abdomen for the female. Then the female corydoras’ mouth will adjust over the male’s opening to collect the sperm, forming the characteristic T-position. The sperm travels to the eggs through the female’s intestines. After the fertilization of the eggs, the female releases and deposits the eggs in a safe location (rocks, glass, leaves of plants). The action is repeated many times by the corydoras.
Corydoras produce about 200 eggs in one day. The young hatch after 3-5 days with a temperature of about 22 Celsius (the hatching period of the young is affected by the water’s heat) and for 2-3 days feed on the yolk sac, so in that period they don’t need food. After the consumption of the yolk sac, they search for food on the bottom. You can feed the young three times per day with brine shrimp, micro-worms, powder food, etc.
For the survival of the young, the species is best to spawn in a breeding tank with shallow water. When the whole process ends, remove all the adult corydoras. You can also place the offspring in breeding traps or plastic containers. Furthermore, the addition of an air pump helps the flow of water and prevents the infection of eggs from fungus. You can also use fungicides for a better outcome.
- Richard Geis 1999, Catfish keeping and breeding in captivity, Chelsea House Publishers, ISBN10 0791050890
- David Alderton 2005, 2008, Encyclopedia of aquarium and pond fish, Published in the United States by DK Publishing, ISBN 978-0-7566-3678-4
- UWI, Corydoras
aeneus. Retrieved from https://sta.uwi.edu/fst/lifesciences/sites/default/files/lifesciences/documents/ogatt/Corydoras_aeneus%20-%20Bronze%20Corydoras.pdf
- Immunohistochemical and ultrastructural evidence of functional organization along the Corydoras paleatus intestine 2016. Retrieved from https://www.researchgate.net/publication/290221812_Immunohistochemical_and_ultrastructural_evidence_of_functional_organization_along_the_Corydoras_paleatus_intestine
- U.S. Fish & Wildlife Service 2013, Bronze Corydoras. Retrieved from https://www.fws.gov/fisheries/ans/erss/uncertainrisk/ERSS-Corydoras-aeneus-FINAL-November2017.pdf
- Hartmut Greven1, Tim Flasbeck2, and Dieter Passia, Axillary glands in the
armouredcatfish Corydoras aeneus. Retrieved from https://www.researchgate.net/publication/256441979_Axillary_glands_in_the_armoured_catfish_Corydoras_aeneus_Callichthyidae_Siluriformes
- Corydoras Aeneus. Retrieved from https://www.seriouslyfish.com/species/corydoras-aeneus/
- Corydoras Aeneus. Retrieved from https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=164292#null
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