Considering adding some diversity and charm to your aquarium? Cory catfish are a popular choice among aquarists for their peaceful nature, fascinating behavior, and ability to keep tanks clean by scavenging leftover food. With over 160 recognized species, these small freshwater fish come in a variety of colors and patterns, making them a great addition to any tank.

But which Cory catfish species are best suited for your aquarium? Here’s a guide to 12 Cory catfish species that will thrive in your tank, along with tips on their care, behavior, and compatibility.

🐟 1. Bronze Cory (Corydoras aeneus)

The Bronze Cory is one of the most common and beginner-friendly Cory catfish species. Known for its metallic bronze or greenish sheen, this species is hardy and easy to care for, making it a great choice for new aquarists.

• Size: 2.5–3 inches
• Tank requirements: 20 gallons or more
• Behavior: Peaceful and social, thrives in groups

These fish are adaptable and can tolerate a wide range of water conditions, but they prefer soft, slightly acidic water.

🐠 2. Panda Cory (Corydoras panda)

With its striking black and white markings resembling a panda, this species is a favorite among aquarium enthusiasts. Panda Corys are playful and active, adding energy to your tank.

• Size: 2 inches
• Tank requirements: 15 gallons or more
• Behavior: Enjoys schooling in groups of 6 or more

They prefer cooler water temperatures, making them ideal for aquariums with other species that thrive in similar conditions.

🐟 3. Peppered Cory (Corydoras paleatus)

The Peppered Cory is another hardy and widely available species. Its unique speckled pattern and adaptability make it a popular choice for community tanks.

• Size: 2.5 inches
• Tank requirements: 20 gallons or more
• Behavior: Calm and peaceful, perfect for beginners

They’re known for their lively behavior and enjoy a sandy substrate where they can forage comfortably.

🐠 4. Sterbai Cory (Corydoras sterbai)

Recognized by its dark body and light, intricate patterns, the Sterbai Cory is a stunning addition to any tank. It’s slightly more sensitive to water quality than other Cory species, so it’s ideal for intermediate aquarists.

• Size: 2.5–3 inches
• Tank requirements: 20 gallons or more
• Behavior: Active and social, enjoys groups

Sterbai Corys prefer warmer water, making them compatible with tropical fish like discus or angelfish.

🐟 5. Albino Cory (Corydoras aeneus var.)

The Albino Cory is a variant of the Bronze Cory but stands out with its white body and pinkish eyes. Its unique appearance and easy care requirements make it a popular choice for aquarists of all levels.

• Size: 2.5 inches
• Tank requirements: 20 gallons or more
• Behavior: Highly active and social

They’re best kept in groups and enjoy a well-planted tank with plenty of hiding spots.

🐠 6. Julii Cory (Corydoras julii)

Known for its intricate spotted pattern, the Julii Cory is a stunning and peaceful species. However, it’s often confused with the False Julii Cory (Corydoras trilineatus), so make sure to verify the species when purchasing.

• Size: 2 inches
• Tank requirements: 15 gallons or more
• Behavior: Gentle and easygoing

They thrive in soft, slightly acidic water and enjoy a sandy substrate for digging.

🐟 7. Emerald Cory (Corydoras splendens)

The Emerald Cory, also known as the Green Cory, is admired for its shimmering green and blue hues. Despite its vibrant appearance, it’s relatively low-maintenance.

• Size: 3 inches
• Tank requirements: 30 gallons or more
• Behavior: Peaceful but slightly shy

These Corys prefer a spacious tank with plenty of plants and hiding spots.

🐠 8. Pygmy Cory (Corydoras pygmaeus)

The Pygmy Cory is a tiny species perfect for nano tanks. Its small size and playful nature make it a joy to watch in a well-planted aquarium.

• Size: 1 inch
• Tank requirements: 10 gallons or more
• Behavior: Active and social

They’re happiest in schools of 6 or more and enjoy swimming in the middle and upper levels of the tank.

🐟 9. Skunk Cory (Corydoras arcuatus)

The Skunk Cory gets its name from the black stripe running down its back. Its bold markings and peaceful demeanor make it a unique addition to community tanks.

• Size: 2 inches
• Tank requirements: 20 gallons or more
• Behavior: Social and lively

They prefer soft water and a sandy substrate to prevent damage to their sensitive barbels.

🐠 10. Bandit Cory (Corydoras metae)

The Bandit Cory is easily recognized by its black eye stripe, which resembles a mask. This species is both beautiful and easy to care for.

• Size: 2 inches
• Tank requirements: 15 gallons or more
• Behavior: Calm and friendly

They enjoy densely planted tanks with low lighting and plenty of hiding spots.

🐟 11. Adolfo’s Cory (Corydoras adolfoi)

Adolfo’s Cory is a rare and striking species with a bright orange stripe on its head and a black patch near its dorsal fin. It’s a bit more expensive but worth the investment for its beauty.

• Size: 2–2.5 inches
• Tank requirements: 20 gallons or more
• Behavior: Active and peaceful

This species prefers soft, slightly acidic water and a well-maintained tank.

🐠 12. Three-Stripe Cory (Corydoras trilineatus)

The Three-Stripe Cory is often mistaken for the Julii Cory due to its similar pattern. However, its distinct three horizontal lines make it easy to identify.

• Size: 2 inches
• Tank requirements: 15 gallons or more
• Behavior: Gentle and social

They thrive in groups and enjoy foraging on a sandy substrate in a planted tank.

FAQs

Q: How many Cory catfish should I keep together?

A: Cory catfish are social fish that thrive in groups of at least 6. Keeping them in groups reduces stress and encourages natural behavior.

Q: Are Cory catfish compatible with other fish?

A: Yes, Cory catfish are peaceful and do well with other non-aggressive fish like tetras, guppies, and rasboras.

Q: Do Cory catfish need a specific substrate?

A: Cory catfish prefer a soft, sandy substrate to protect their sensitive barbels while foraging.

References

• Seriously Fish – Corydoras Species
• Aquarium Info – Cory Catfish
• Fishkeeping World – Corydoras Catfish Care

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