Corydoras aeneus — Bronze Corydoras
Family: Callichthyidae
Origin: Widespread across South America — Venezuela, Colombia, Peru, Brazil, Argentina
Size: Up to 7 cm (2.75 inches)
Lifespan: 5–10 years
 
Natural Habitat
Environment: Shallow, slow-moving waters such as creeks, floodplains, and forest pools
Water Conditions: Soft, warm, oxygen-rich waters with silty or sandy bottoms
Temperature Range: 22–28°C (72–82°F)
 
Physical Description
Body Shape: Robust, rounded body with a slightly arched back
Coloration:
Bronze to olive-brown body with a metallic sheen
Dark lateral stripe running from gill to tail
Underside pale to white
Fins: Transparent to lightly pigmented
Note: One of the most common and widely bred Corydoras species in the aquarium trade. Albino and other color morphs (e.g. green, gold) are derived from this species.
 
Aquarium Care
Tank Size: Minimum 60 litres (15 gallons) for a group
Water Parameters:
pH: 6.0–7.5
Hardness: Soft to moderate
Temperature: 22–28°C (72–82°F)
Water Flow: Low to moderate
Substrate: Fine sand preferred to protect sensitive barbels
Décor: Driftwood, leaf litter, plants, and shaded hiding places
Filtration: Clean, well-oxygenated water is essential
 
Diet
Type: Omnivorous bottom-feeder
Preferred Foods:
Sinking pellets, bloodworms, brine shrimp, daphnia
Occasional algae wafers and blanched vegetables
Feeding Frequency: 1–2 times daily
 
Behavior & Tank Mates
Temperament:
Peaceful and social
Should be kept in groups of at least 5 individuals
Compatible Tank Mates:
Tetras, rasboras, livebearers, dwarf cichlids, peaceful community species
Avoid aggressive or very large tankmates
Behavior Notes:
Active during the day
Frequently surfaces to gulp air
 
Breeding
Spawning Method: Egg layer
Breeding Conditions:
Triggered by cool water changes and high-protein diet
Eggs laid on tank walls, plant leaves, or decorations
Fry Care:
Eggs hatch in 3–5 days
Feed fry with infusoria or finely crushed foods
 
Conservation Status
IUCN Status: Not Evaluated
Notes: A staple in freshwater aquariums for its durability, gentle nature, and adaptability. Excellent for both beginners and experienced aquarists