The False Julii Cory Catfish (Corydoras trilineatus) is a popular and hardy Corydoras species known for its beautiful network of dark spots and maze-like markings across a silver body. It is often mistaken for the true Julii Cory (Corydoras julii), but the False Julii typically shows connected or chain-like patterns rather than isolated spots.

Native to the Amazon River basin in Peru, Colombia, and Brazil, this peaceful bottom-dwelling fish thrives in planted community aquariums with soft substrate and stable water conditions. Its gentle temperament and active schooling behavior make it an excellent choice for both beginner and experienced aquarists.

When kept in groups, False Julii Corys are very active and often explore the aquarium floor together while searching for food.

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Why Aquarists Love False Julii Cory

• Attractive spotted and maze-like body pattern
• Peaceful and hardy community fish
• Active schooling behavior
• Excellent for planted aquariums

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Behavior & Compatibility

False Julii Cory Catfish are very peaceful schooling fish and should be kept in groups of at least 6 or more.

Suitable tank mates include:

• Tetras
• Rasboras
• Dwarf cichlids
• Angelfish
• Other peaceful community fish

They are generally safe with shrimp and other small invertebrates.

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Ideal Aquarium Setup

Because Corydoras spend most of their time on the bottom, substrate choice is important.

Recommended aquarium features include:

• Fine sand or smooth gravel substrate
• Live plants and driftwood
• Plenty of hiding places
• Gentle water flow

Avoid sharp gravel that may damage their sensitive barbels.

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Diet and Feeding

False Julii Cory Catfish are omnivorous scavengers and accept a wide variety of foods.

Recommended foods include:

• Sinking pellets or wafers
• High-quality flakes
• Frozen bloodworms
• Brine shrimp or small live foods

A varied diet helps maintain healthy growth and coloration.

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Recommended Tank Parameters

Temperature: 72 – 79°F (22 – 26°C)
pH: 6.0 – 7.5
KH: 2 – 10 dKH
Minimum Tank Size: 20 gallons for a school

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Size Information

Average Adult Size:
2 – 2.5 inches (5 – 6 cm)

Typical Sale Size:
1 – 1.25 inches (2.5 – 3 cm)

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Origin

The False Julii Cory (Corydoras trilineatus) originates from Peru, Colombia, and Brazil, primarily within the Amazon River basin.

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Add personality and beautiful pattern to your aquarium with the False Julii Cory Catfish, a peaceful and active bottom-dwelling fish perfect for freshwater community aquariums. Discover the exceptional quality awaiting you at Betta USA, where our premium selections are updated weekly to ensure you receive only the finest livestock for your meticulously curated display. To complement your new bottom dwellers, explore our expertly curated selection of Cory Catfish and other live tropical fish.