Corydoras armatus

Scientific name: Corydoras armatus

Common name: N/A

Family: Callichthyidae

Usual size in fish tanks: 4 - 5 cm (1.57 - 1.97 inch)

014

Recommended pH range for the species: 6.3 - 7.2

Recommended water hardness (dGH): 3 - 18°N (53.57 - 321.43ppm)

0°C 32°F30°C 86°F

Recommended temperature: 22 - 27 °C (71.6 - 80.6°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

Food and Feeding

Corydoras armatus thrives on a varied diet. Provide high-quality flake or sinking pellets as a staple, supplemented with algae wafers to meet their dietary needs. For treats, offer live or frozen foods such as brine shrimp and bloodworms twice a week. These bottom-dwelling fish are most active in the evening, so feeding them during this time ensures they have ample opportunity to access food before faster tank mates do.

Origin

Corydoras armatus is native to South America, specifically inhabiting the waterways of the Upper Amazon Basin. These environments are characterized by soft, slightly acidic to neutral water, dense vegetation, and sandy or fine gravel substrates. Replicating these natural conditions in an aquarium helps them feel secure and display their natural behaviors.

Sexing

Sexing Corydoras armatus can be done by observing them from above. Females are slightly larger with a rounder, fuller body shape compared to the slimmer males. These differences become more pronounced during breeding periods when females carry eggs.

Breeding

There are currently no documented cases of Corydoras armatus breeding in captivity. In the wild, they are believed to follow the same spawning methods as other Corydoras species. Typically, females lay adhesive eggs on flat surfaces like plant leaves or tank walls, and males fertilize them externally. To encourage breeding in an aquarium, maintain pristine water conditions, slightly cooler temperatures, and provide plenty of plants or smooth surfaces for egg deposition. Fry can be fed infusoria or finely crushed flakes after hatching.

Lifespan

With proper care, Corydoras armatus can live 3-5 years. Stable water parameters, a nutritious diet, and a stress-free environment are essential for maximizing their lifespan.

Tank Setup

Corydoras armatus requires a well-maintained tank with a minimum capacity of 50 liters (~13 gallons). Use a soft, sandy substrate or fine, rounded gravel to protect their sensitive barbels from injury. Provide ample hiding spots using rocks, driftwood, and live plants such as Java Fern, Anubias, and Amazon Swords. Gentle water flow and moderate lighting mimic their natural habitat and encourage natural behaviors. Maintain water parameters within their ideal range: pH 6.3-7.2, hardness 3-18°N (53.57-321.43 ppm), and temperature 22-27°C (71.6-80.6°F).

Compatible Tankmates

Corydoras armatus is a peaceful species, making them ideal for community tanks with other gentle fish. Suitable tankmates include Neon Tetras, Ember Tetras, Harlequin Rasboras, and Otocinclus Catfish. Avoid housing them with aggressive or territorial species that may stress or harm them. Keeping Corydoras in groups of at least five enhances their social behaviors and overall well-being.

Short Description

Corydoras armatus is a peaceful and social bottom-dwelling species that thrives in small groups. Their delicate barbels require a soft substrate to prevent injury, and they prefer tanks with plenty of hiding spots and live plants. With their gentle temperament and manageable size, they are a perfect choice for community aquariums with similarly peaceful fish. Proper care and a well-maintained tank environment will ensure these charming fish remain healthy and active.