The Emerald Cory (
Corydoras splendens, formerly Brochis splendens) is a popular, larger species of armored catfish known for its shimmering iridescent green body and peaceful nature. Often called the Emerald Brochis, it is a hardy scavenger native to the Amazon River basin.
Quick Statistics
- Scientific Name: Corydoras splendens (often sold as Brochis splendens)
- Adult Size: Typically 3 to 3.5 inches (7.5–9 cm), making it larger than most other cory species
- Lifespan: 5–8 years or longer with proper care
- Temperature: 72–79°F (22–26°C)
- pH: 6.0–7.5 (prefers neutral to slightly acidic)
Aquarium Care
- Tank Size: A minimum of 30 gallons is recommended due to their larger size and schooling behavior.
- Substrate: Fine sand or very smooth gravel is essential to protect their sensitive barbels (whiskers) used for foraging.
- Social Needs: They are highly social and should be kept in groups of 6 or more to encourage natural behavior and reduce stress.
- Diet: Omnivorous scavengers. Provide a varied diet of sinking catfish pellets, frozen or live foods (bloodworms, brine shrimp, daphnia), and occasional vegetable matter.
- Tank Setup: They appreciate well-planted tanks with plenty of driftwood and smooth rocks to provide hiding spots.
Behavior & Compatibility
- Temperament: Extremely peaceful and well-suited for community tanks.
- Tankmates: Compatible with other peaceful fish like tetras, rasboras, dwarf cichlids, and angelfish.
- Unique Feature: Like other corydoras, they can breathe air from the surface if oxygen levels are low. Ensure there is a gap at the top of the tank for them to gulp air.
Identification Tips
The Emerald Cory is frequently confused with the Bronze Cory(Corydoras aeneus), which can also have a green sheen. You can distinguish a "true" Emerald Cory by its dorsal fin: it typically has 10–12 rays, whereas standard Corydorasspecies like the Bronze Cory only have about 7.
