Spotted cory - Corydoras ambiacus

Scientific name: Corydoras ambiacus

Common name: Spotted 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 - 7.6

Recommended water hardness (dGH): 4 - 22°N (71.43 - 392.86ppm)

0°C 32°F30°C 86°F

Recommended temperature: 21 - 25 °C (69.8 - 77°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

Origin

The Spotted Cory, scientifically known as Corydoras ambiacus, originates from South America, specifically the Rio Ambyiacu in Peru. These catfish inhabit slow-moving, shallow waters with sandy or muddy substrates, often surrounded by dense vegetation. The natural environment provides them with plenty of hiding spots, which is essential for their comfort and well-being in the wild.

Short Description

Spotted Cory is a peaceful and social species, best kept in small groups of at least six individuals. These fish are known for their distinctive spotted pattern, which provides them with natural camouflage in their habitat. Unlike many other fish, Spotted Corys are labyrinth fish, meaning they have a specialized organ that allows them to breathe atmospheric air, so they need regular access to the water surface. They are generally more active during the evening and nighttime hours, often seen foraging for food at the bottom of the tank. It's crucial to provide them with plenty of hiding places, such as caves or dense plantings, as they tend to be shy and appreciate having safe spaces to retreat.

Food and Feeding

Spotted Corys are not picky eaters and will readily accept a variety of foods, making them easy to feed in a community tank. Their diet should include a balanced mix of high-quality flake foods, as well as live and frozen options like bloodworms, brine shrimp, and daphnia. They have a particular fondness for bloodworms and algae wafers, which provide essential nutrients. When feeding in a community tank, it's important to ensure that Spotted Corys get their share of the food, as they can sometimes be outcompeted by faster, more aggressive feeders. Supplementing their diet with sinking pellets designed for bottom dwellers can help ensure they receive adequate nutrition.

Sexing

Sexing Spotted Corys can be somewhat challenging, but it becomes easier when viewed from above. Females typically have a plumper, more rounded body shape compared to the slimmer males, especially when they are full of eggs. Additionally, females may grow slightly larger than males, although this difference is not always pronounced. During breeding attempts, these physical differences can become more noticeable, making it easier to identify potential pairs.

Breeding

Most Corydoras species are known to breed readily in home aquariums, but Spotted Corys have proven to be more elusive in this regard. Successful breeding of Corydoras ambiacus in captivity is rare, with limited reports of viable offspring. These fish are egg layers, typically scattering their eggs among plants or other submerged surfaces. To encourage breeding, it may be beneficial to simulate their natural habitat by providing soft, slightly acidic water and maintaining a consistent temperature. Spawning may be triggered by performing water changes with slightly cooler water to mimic the onset of the rainy season in their native environment.

Lifespan

The expected lifespan for the Spotted Cory is typically between 3 to 5 years, though with exceptional care, they can sometimes live longer. Providing a stable environment with high water quality, a balanced diet, and regular monitoring for signs of disease will help ensure they live out their full lifespan.