Corydoras agasizzi, Steindachner, 1877
Origin:South-America, Brazil, Amazonas, Rio Amazonas. Peru, Huanoco, Rio Pachitea. Peru, Loreto, Rio Nanay + Rio Napo + Rio Amazonas. Colombia, Amazon river.
Etymology: After Professor Louis Agassiz.
Synonyms:None./ C. ambiacus
First import:1865, Thayer expedition.
Description: Bodycolor silver, small brown spots all over the body, dorsal and caudal fin included.Black spot at the dorsal fins base.
Care:A 80 cm tank with good filtration. No special waterrequirements.
Feeding:No special requirements. Make sure food gets to them.
pH: 6.0-7.5 Hardness: 2-10
Breeding: Not yet been described.
Sexual dimorphism:Females are wider than males, check from above.
Additional:Very debatable species. Corydoras ambiacus and C. agasizii are so similar even ichtyologists can hardly tell them apart, and they are not geographically separated from eachother. They occur sympatric in some rivers and the only described difference I could find is the maximum length, Corydoras ambiacus is half a cm smaller.
Picture references: Both pictures E. Naus
References:Lambourne, D. ((1995): Corydoras catfish, An Aquarist's Handbook. Blandford, London, UK.
All images, information, text, and other information/items in this site © Aquaworld website as described in the Berne convention.