Osteogaster aeneus var. L-10080

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Osteogaster aeneus var. L-10080 is a commercial form of the well-known bronze cory, also called Corydoras aeneus. This small South American catfish is appreciated for its peaceful behavior, constant bottom activity, and preference for living in groups. Its sturdy body, bony plates, and barbels give it the typical appearance of a corydoras. In the aquarium, it is generally easy to keep when provided with a soft substrate, well-oxygenated water, and regular maintenance. This form is common in the aquarium trade and suits many properly arranged community aquariums. It is an active, useful, and attractive bottom-dweller for freshwater setups.

General species description

Osteogaster aeneus var. L-10080 belongs to the armored catfishes of the family Callichthyidae. It stays close to the bottom and uses its barbels to locate food in the substrate. Its schooling behavior is one of its most important traits: it should be kept with several companions of its own kind. Despite its activity, it is generally peaceful and social, making it a good choice for a community aquarium. It may occasionally rush to the surface to swallow air, which is normal among several callichthyid catfishes. The common name bronze cory refers to the characteristic metallic body coloration. The L-10080 designation is a trade or stock code used to identify this form in the aquarium hobby.

Geographic origin and biotope

Osteogaster aeneus var. L-10080 is associated with Corydoras aeneus, a species widely distributed in northern South America, including Colombia. It occurs in slow to moderately flowing waters, shallow areas, and locations with sand, fine mud, or small amounts of plant debris on the bottom. Riparian vegetation can provide shade and locally reduce the current. In the aquarium, the most useful features to reproduce are a non-abrasive substrate, shaded areas, shelters, and good water movement. Efficient filtration and well-oxygenated water are important, especially when the group is active or when the temperature is high. Stable water quality is more important than attempting to recreate a precise river scene.

Precise location and local name

In the aquarium trade, Osteogaster aeneus var. L-10080 is generally presented as a form of Corydoras aeneus from the Colombian supply chain or associated with commercial material identified as L-10080. The most useful Spanish vernacular name is corydora bronce; aquarists also use bronze cory or bronze corydoras. The L-10080 code should not be mistaken for the name of a river or natural locality. In stores, this designation mainly helps distinguish the offered stock or form. For practical aquarium identification, the general morphology of Corydoras aeneus and its care requirements are more useful than the trade code. Local names may vary between regions and suppliers.

Appearance and physical characteristics

Osteogaster aeneus var. L-10080 has a sturdy, slightly laterally compressed body covered with rows of bony plates. Its color ranges from brownish green to metallic bronze, with reflections that vary according to lighting and the fish’s condition. The belly is often lighter. The lower mouth carries several sensitive barbels adapted to searching for food on the bottom. The fins are usually translucent to grayish. As in other corydoras, the pectoral and dorsal fins contain stiff rays that can prick during handling. Adult length reaches about 7 cm, sometimes more depending on sex and rearing conditions. Females are usually broader and rounder than males. Its armored body and bottom-oriented mouth are distinctive features for aquarists.

General diet

Osteogaster aeneus var. L-10080 is an opportunistic omnivore that actively searches for small prey, organic debris, and plant matter on the bottom. In the aquarium, its diet should be based on quality sinking wafers, supplemented with frozen or live foods such as bloodworms, brine shrimp, and small benthic organisms. It is best to feed when other fish are less aggressive at mealtimes so the group can receive enough food. Wafers should not be left to decompose in the aquarium. A varied diet supports growth, body condition, and breeding. Do not rely on leftovers from other fish: Osteogaster aeneus var. L-10080 should receive a dedicated portion placed on the bottom. Feeding several smaller portions can be useful in a busy community aquarium.

Essential data

• Original river name:
• Local name used: Corydora bronce
• Origin of the scientific name: The species was described in the genus Callichthys as Callichthys aeneus; it is now generally placed in Osteogaster in some classifications.
• Meaning of the full name: Osteogaster means bony belly; aeneus means bronze or copper-colored; var. indicates a variety or form; L-10080 is an aquarium trade identification code.
• Common or vernacular names: Bronze cory, bronze corydoras, bronze catfish, Corydoras aeneus
• Family: Callichthyidae
• Subfamily: Corydoradinae
• Name pronunciation: os-tee-oh-GAS-ter ee-NEE-us
• Discovery: Theodore Nicholas Gill, 1858
• Maximum adult size: About 7 cm
• Water temperature and pH: 22 to 28 °C; pH 6.0 to 8.0
• Watercourse appearance and surrounding vegetation: Slow to moderately flowing waters, shallow areas, shade, and riparian vegetation
• Typical tankmates: Paracheirodon axelrodi, Hyphessobrycon columbianus, Aequidens pulcher
• Temperament and behavior: Peaceful, schooling, active on the bottom, and best kept in a group
• Water depth: Shallow to intermediate zones
• Sexual dimorphism: Females are larger and more robust; males are often slimmer
• Bottom structure and flow: Fine, non-abrasive sand or fine gravel; low to moderate flow

For greater success

To keep Osteogaster aeneus var. L-10080 successfully, use a mature aquarium, a suitably sized group, and a fine sand substrate that protects the barbels. Provide open areas for foraging, along with shelters and plants that create shade. Stable, clean, well-oxygenated water is essential. Feed a varied selection of sinking foods instead of relying on leftovers from other fish. Avoid aggressive tankmates and unnecessary handling, since the pectoral fin rays can cause injury. Regular maintenance and moderate water changes will help this corydoras remain active, healthy, and natural in its behavior. With these basics in place, it is a dependable community aquarium catfish.