Bandit corydoras - Corydoras metae

Scientific name: Corydoras metae

Common name: Bandit corydoras

Family: Callichthyidae

Usual size in fish tanks: 5 - 6 cm (1.97 - 2.36 inch)

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Recommended pH range for the species: 6 - 8

Recommended water hardness (dGH): 4 - 18°N (71.43 - 321.43ppm)

0°C 32°F30°C 86°F

Recommended temperature: 22 - 26 °C (71.6 - 78.8°F)

The way how these fish reproduce: Spawning

Where the species comes from: South America

Temperament to its own species: peaceful

Temperament toward other fish species: peaceful

Usual place in the tank: Bottom levels

Short Description

The Bandit Corydoras (Corydoras metae) is a peaceful and hardy bottom-dwelling fish native to the river basins of Colombia in South America. This species is easily recognized by its distinctive black stripe running down its back and across its eye, resembling a bandit mask. Known for their active and social behavior, Bandit Corydoras are ideal for community aquariums, especially for beginners looking for a low-maintenance species.

Origin

Corydoras metae is native to South America and is found primarily in the Meta River basin of Colombia. These fish inhabit slow-moving waters with sandy or muddy substrates and abundant aquatic vegetation.

Tank Requirements

A tank of at least 60 liters (15 gallons) is recommended for Bandit Corydoras. Maintain water temperatures between 22-26°C (71.6-78.8°F), a pH range of 6-8, and water hardness of 4-18°N (71.43-321.43 ppm). Use a soft sandy substrate to protect their sensitive barbels and include plants, driftwood, and rocks to create hiding spots. Good water quality is essential, so ensure efficient filtration and regular water changes.

Food and Feeding

Bandit Corydoras are omnivorous and thrive on a varied diet. Provide high-quality flake foods, sinking pellets, and algae wafers as their staple diet. Supplement their meals with live or frozen treats such as bloodworms, brine shrimp, and daphnia. An occasional treat of shelled peas can also be offered to diversify their nutrition. Feed them small portions twice daily.

Compatibility

Bandit Corydoras are peaceful and suitable for community tanks. They get along well with other small, non-aggressive species such as tetras, rasboras, and dwarf gouramis. Avoid housing them with aggressive or overly active fish to prevent stress. Keeping them in groups of six or more encourages natural shoaling behavior and reduces stress.

Sexing

Females are generally larger and plumper than males, particularly when mature. These differences become more noticeable during breeding, as females carry eggs.

Breeding

Breeding Bandit Corydoras is relatively easy. They spawn in groups and lay batches of 50-100 eggs on plants, Java moss, or tank glass. Performing large water changes with cooler water can trigger spawning. The eggs hatch within 4-5 days, and once the fry are free-swimming, feed them newly hatched brine shrimp or finely powdered fry food. With proper care, the pairs will breed prolifically.

Lifespan

With proper care, Corydoras metae can live up to 5 years. Maintaining stable water conditions, a balanced diet, and reducing stress are key to ensuring their longevity.