Corydoras Sterbai

Datasheet

General Description

The Corydoras Sterbai, commonly known as Sterba's Cory, is a species within the Callichthyidae family. With over 180 described species, Corydoras is recognized as one of the most diverse South American fish genera. They are characterized by their peaceful nature and distinctive armored bodies, devoid of scales but featuring bony plates along their flanks. The Corydoras Sterbai is part of the "armored" catfish group and possesses sharp pectoral fin spines that require careful handling.

Aquarium Setup

For optimal care, a tank imitating an Amazon biotope is suitable for Corydoras Sterbai. Following a simple setup, utilize river sand as substrate, incorporate driftwood branches, twisted roots, and dried leaves to mimic their natural habitat. Avoid aquatic plants, maintain dim lighting, and consider adding aquarium-safe peat to the filter for black water simulation. Alternatively, a well-planted tank with regular maintenance is also suitable; however, ensure clean substrate, avoid undergravel filtration, and monitor water conditions closely.

Behaviour

Sterba's Cory is highly peaceful and ideal for community tanks with small, non-aggressive fish species like characins, cyprinids, and dwarf cichlids. Maintaining them in groups of at least six individuals is beneficial as they exhibit increased confidence and activity in the presence of conspecifics. While primarily benthic, some varieties spend time in open water. They possess the ability to breathe atmospheric air, aiding survival in oxygen-deprived conditions.

Feeding and Diet

Being omnivorous, Sterba's Cory readily accepts sinking pellets or tablets as staple diet. Supplement their diet with live and frozen foods such as Daphnia, Artemia, and bloodworm to ensure proper nutrition. It is essential to provide varied food options to ensure their dietary needs are met adequately.

Reproduction & Dimorphism

Breeding Corydoras Sterbai is considered relatively straightforward, making them a suitable choice for beginners. Setting up a dedicated breeding tank with appropriate substrate, vegetation, filtration, and water parameters is essential. Sexing is easily done from above, with females appearing rounder and broader-bodied, especially when carrying eggs. During spawning, males display active pursuit of females, culminating in fertilization and egg deposition on surfaces. Fry can accept microworms and brine shrimp nauplii as their first foods.

Habitat and Distribution

In the wild, Corydoras Sterbai is found in small tributaries, creeks, and pools in Bolivia and Brazil, particularly in the Rio Guaporé region. Commercial breeding has become the primary source of these fish in the aquarium trade, enhancing their hardiness and adaptability compared to wild-caught specimens. Wild populations are scarce, with most specimens in the trade originating from commercial farms in Eastern Europe or the Far East.