Skunk cory - Corydoras arcuatus

Scientific name: Corydoras arcuatus

Common name: Skunk cory

Family: Callichthyidae

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

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Recommended pH range for the species: 6.5 - 8

Recommended water hardness (dGH): 4 - 12°N (71.43 - 214.29ppm)

0°C 32°F30°C 86°F

Recommended temperature: 22 - 28 °C (71.6 - 82.4°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

The Skunk Cory is an omnivore, meaning it thrives on a varied diet of plant and animal matter. To maintain its health and vitality, provide a balanced diet that includes:

• High-quality sinking pellets or wafers
• Frozen or live foods such as bloodworms, brine shrimp, and daphnia
• Blanched vegetables like zucchini or spinach

Ensure food reaches the bottom of the tank, as Skunk Corys are bottom feeders and may not compete well for floating food.

Sexing

Sexing Skunk Corys can be challenging, but there are subtle differences:

• Males: More streamlined body shape with a pronounced dorsal fin.
• Females: Slightly larger and plumper, especially when carrying eggs.

Breeding

Breeding Skunk Corys in captivity is achievable with proper conditions. Follow these steps:

• Breeding Tank Setup: Use a 10-15 gallon (~38-57 liters) tank with soft, slightly acidic water. Provide hiding spots using plants and smooth rocks.
• Temperature: Raise the temperature slightly to around 26°C (78.8°F) to encourage spawning.
• Spawning Process: The female lays eggs on prepared surfaces like plants or glass. Remove the parents after spawning to protect the eggs.
• Hatching: Eggs hatch within 4-8 days. Feed fry newly hatched brine shrimp or specialized fry food.

Lifespan

With proper care, Skunk Corys can live up to 4-5 years, though some may live slightly longer in optimal conditions.

Origin

Native to South America, Skunk Corys inhabit freshwater rivers and tributaries across Peru, Brazil, and Ecuador. They thrive in slow-moving, well-oxygenated waters with a sandy or muddy substrate.

Tank Setup and Requirements

• Tank Size: A minimum of 20 gallons (75 liters) is recommended for a small group.
• Substrate: Soft sand or fine gravel to prevent damage to their sensitive barbels.
• Water Parameters:
• pH: 6.5 - 8
• Hardness: 4 - 12 dGH (71 - 214 ppm)
• Temperature: 22 - 28°C (71.6 - 82.4°F)
• Filtration: Use a gentle filter to maintain water quality without creating strong currents.
• Tank Mates: Peaceful species such as tetras, rasboras, and other small catfish. Avoid aggressive or fin-nipping fish.

Short Description

Skunk Corys are a unique species of Corydoras with a distinctive black stripe running along their back. They are highly social and should be kept in groups of at least 6 to reduce stress and encourage natural behavior. These fish are sensitive to poor water conditions, so regular water changes and a well-maintained tank are essential.

Unlike some catfish, Skunk Corys cannot tolerate salt in their water, so avoid adding salt to their aquarium. Providing a stress-free environment with plenty of hiding places will ensure these peaceful bottom dwellers thrive in your community tank.

Pictures

Thanks to Ted! Other pictures were bought from jjphoto.dk.