Julii Corydoras (Corydoras julii) in a planted freshwater aquarium
Peaceful Easy Schooling

Julii Corydoras

Corydoras julii

Minimum Tank

15 Gallons

Adult Size

2.5 inches

Temperature

72-79°F (22-26°C)

pH Range

6.0-7.5

Lifespan

10 years

School Size

6+ fish

About Julii Corydoras

The julii corydoras is an elegantly patterned catfish from the coastal rivers of northeastern Brazil. Its body features a beautiful pattern of small, distinct dark spots on a light base, with a bold dark stripe along the lateral line. True julii corydoras are actually quite rare in the aquarium trade; most fish sold as julii are actually the similar-looking Corydoras trilineatus, which has spots that tend to connect into reticulated lines. Regardless of exact identification, these are charming, hardy bottom-dwellers with the same sociable personality as all corydoras. They are popular for their attractive spotted pattern and reliable, peaceful temperament in community settings.

Care Requirements

Tank Setup

  • • Minimum 15-gallon tank required
  • • Temperature: 72-79°F (22-26°C)
  • • pH: 6.0 - 7.5
  • • Category: Catfish

Diet & Feeding

  • • Diet type: Omnivore
  • • Feed 1-2 times daily
  • • Varied diet recommended

Tank Mate Compatibility

Compatible With

🐟 Tetras
🐟 Rasboras
🐟 Peaceful Community Fish

Avoid Keeping With

⚠️
Aggressive Fish Not compatible

Care Tips

Expert Tips

Keep julii corydoras in groups of at least six on smooth sand or fine-gravel substrate at 73-79°F. They are hardy, adaptable fish that do well in most community setups. If purchasing, be aware that true Corydoras julii are rare and most specimens sold under this name are C. trilineatus, which is equally attractive and easy to care for. Feed sinking pellets, wafers, and frozen foods, ensuring food reaches them past faster-eating mid-water fish. Provide driftwood and plants for hiding spots. Regular substrate maintenance is important since they spend all their time on the bottom. They are easy to keep and breed, making them great for beginners interested in catfish.

Quick Facts

57L

Min Tank (15gal)

6cm

Adult Size (2.5")

10yr

Lifespan

6+

Min School

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Frequently Asked Questions

What size tank does a Julii Corydoras need?

A Julii Corydoras needs a minimum tank size of 15 gallons (57 litres). They should be kept in schools of at least 6.

What water parameters does a Julii Corydoras need?

Julii Corydoras thrive in water between 72-79°F (22-26°C) with a pH of 6.0-7.5.

Are Julii Corydoras easy to care for?

Julii Corydoras are considered easy to care for. They are peaceful fish with a lifespan of about 10 years.

How big do Julii Corydoras get and what do they eat?

Julii Corydoras reach about 2.5 inches and are omnivores. Keep julii corydoras in groups of at least six on smooth sand or fine-gravel substrate at 73-79°F. They are hardy, adaptable fish that do well in most community setups. If purchasing, be aware that true Corydoras julii are rare and most specimens sold under this name are C. trilineatus, which is equally attractive and easy to care for. Feed sinking pellets, wafers, and frozen foods, ensuring food reaches them past faster-eating mid-water fish. Provide driftwood and plants for hiding spots. Regular substrate maintenance is important since they spend all their time on the bottom. They are easy to keep and breed, making them great for beginners interested in catfish.