Corydoras Davidsandsi

Datasheet

General Description

The Corydoras Davidsandsi, commonly known as the Sand's Cory, belongs to the Callichthyidae family under the classification order Siluriformes. These species are often grouped with other similar species from the Rio Negro basin and are characterized by an oblique dark bar along the dorsal region. They are known for their bony plates that replace traditional scales on their bodies, giving them the nickname "armoured" or "mailed" catfishes. Their taxonomy can be complex, with many undescribed species thought to exist.

Aquarium Setup

For optimal care, the Sand's Cory should be kept in groups of at least 4-6 individuals. An aquarium with a minimum size of 80 litres is recommended. The tank should have a substrate of fine sand or clean rounded gravel, and some decor for cover to provide security to the fish. Water conditions should be maintained with a pH range of 5.0-7.0, hardness between 18-90ppm, and a temperature of 20-28°C.

Behaviour

These fish are peaceful and gregarious, thriving in group settings. They are facultative air breathers, occasionally rising to the water's surface to gulp air. Care should be taken when handling them, as their stiffened pectoral-fin spines can cause a painful "sting."

Feeding and Diet

Sand's Cory are foraging omnivores and will accept a variety of sinking dried foods, small live, and frozen varieties. Offering a diverse diet ensures their optimum health. They should not be expected to survive on leftovers from other tank mates or solely used for aquarium cleaning.

Reproduction & Dimorphism

Breeding Sand's Cory follows similar practices to other Corydoras species. A ratio of 2 males per female is recommended during breeding. Females tend to be larger and rounder than males. Eggs are typically deposited on aquarium glass and require careful handling and appropriate water conditions for successful hatching.

Habitat and Distribution

Endemic to the Rio Negro basin, specifically the Rio Unini in Brazil, the Sand's Cory prefers habitats characterized by dark, organically stained water, low hardness, low conductivity, and acidic pH. They are often found in tributaries and flooded forest areas within the basin.