More info
Datasheet
| Maximum Size | 5.0cm / 1.97inches |
| Temperature | 20°C / 68.00°F - 26°C / 78.80°F |
| Hardness | 1.01dgH / 18ppm - 5.04dgH / 90ppm |
| pH | 4.0-7.0 |
General Description
Corydoras duplicareus is a member of the Callichthyidae family within the Siluriformes order. These fish, categorized as facultative air breathers, possess rows of bony plates on their flanks, typical of the family. Their taxonomy is complex, with over 150 valid species in the Corydoras genus, where confusion and undescribed species exist. They are known for their oblique dark body bar and their adaptation to uptake atmospheric oxygen, aiding survival in oxygen-deprived environments. It is important to note that the stiffened pectoral-fin spines can cause painful stings when mishandled.
Aquarium Setup
For a proper aquarium setup for Corydoras duplicareus, a substrate of fine sand or rounded gravel is recommended to be kept meticulously clean. Decor choices are flexible, but it is advised to provide hiding spots for the fish. Driftwood branches and dry leaf litter can be added to the tank, promoting microbe colonies crucial as a secondary food source for fry. A gentle filtration system, such as an air-powered sponge-style unit, is generally sufficient, with slight water movement being acceptable.
Behaviour
These fish display peaceful and social behavior, thriving best in groups of at least 4-6 individuals. Their gregarious nature makes them active and engaging tank inhabitants when housed with their own kind.
Feeding and Diet
Corydoras duplicareus are omnivores that eagerly accept sinking dried foods, live, and frozen varieties such as bloodworms and Tubifex. Maintaining a diverse diet is crucial to ensure they remain in optimal health and condition, as they should not be solely reliant on leftovers in the tank.
Reproduction & Dimorphism
Reported mating behaviors of Corydoras duplicareus involve laying eggs on the substrate or around the waterline. Sexual dimorphism can be observed, with females typically growing larger and becoming broader-bodied, especially evident when gravid.
Habitat and Distribution
This species is native to the upper rio Negro system in Brazil, specifically found in areas with fast-flowing waters, sandy substrate, and dark, organically stained water. The habitat typically features a low conductivity, minimal water hardness, and a slightly acidic pH level ideal for their natural environment.