Long Fin Bronze Corydoras Aeneus 3cm Catfish

Overview

The Long Fin Bronze Cory is a selectively bred, flowing-finned form of Corydoras aeneus, the classic metallic bronze-green armoured catfish. The species is found widely across South America, with Trinidad as its type locality. Hardy, peaceful and always busy on the substrate, it suits beginners and established community tanks.

• Adult Size: Around 7 cm (2.8 in); females larger
• Lifespan: 5–10 years

Origin

• Native to: Trinidad and much of South America east of the Andes
• Habitat: Quiet, shallow river margins and streams over sand

Feeding

• Diet: Omnivorous, bottom forager
• Preferred Foods: Sinking pellets, catfish granules, frozen bloodworm, Daphnia, Cyclops, mosquito larvae
• Feeding Habits: Feed once or twice daily with sinking food; do not rely on leftovers

Tank Mates

• Best with: Tetras, rasboras, livebearers, dwarf cichlids, other corys
• Avoid: Fin-nippers such as tiger barbs; large predatory fish

Aggression & Behaviour

• Temperament: Peaceful and gregarious
• Territoriality: None

Experience Level

• Difficulty: Beginner
• Challenges: Long fins invite nipping; barbels erode on rough gravel

Water Parameters

• Water Type: Freshwater, adaptable, soft to moderately hard
• Temperature: 21–27°C (70–81°F)
• pH: 6.0–8.0
• Hardness: 2–15 dGH
• Flow: Slow to moderate
• Tank Size: Minimum 80 litres for a group of six

Final Notes

Keep in a group of five or more on soft sand with shady planted areas. They breathe air intestinally, so leave a gap under the cover glass. Females are broader when seen from above; males are slimmer. A large, slightly cooler water change triggers spawning in the classic T-position, with adhesive eggs placed on glass and plants; move the parents out to raise fry. An easy, characterful choice.