Similis Cory

The Similis Cory (Corydoras similis)

The Similis Cory, also known as the Smudge Spot Cory or Violet Cory, is a peaceful, active, and hardy bottom-dwelling catfish. Native to Brazil's Rio Madeira basin, they grow to about 5 to 6 cm (2 to 2.5 inches) and are recognized by their golden bodies, fine dark spots, and distinct iridescent violet smudge near the tail.

Quick Facts

• Scientific Name: Corydoras similis (formerly Hoplisoma simile)
• Lifespan: 5 to 7+ years
• Temperament: Highly peaceful and completely non-aggressive
• Minimum Group Size: 5 to 6+ individuals (they are very social and school actively)

Tank Requirements

• Tank Size: At least 60 to 80 cm (20 to 30 gallons) to accommodate a school.
• Water Parameters: Temperature 21–27°C (70–80°F), pH 5.5–7.2.
• Substrate: Fine, soft sand is essential. Because these fish constantly sift the bottom for food, sharp gravel can damage their sensitive barbels.
• Decor: Provide plenty of hiding spots using driftwood, smooth rocks, and plants.

Diet

Similis Corys are omnivorous foragers. They accept high-quality sinking pellets, flakes, and wafers, but thrive best when their diet is supplemented with live or frozen foods like daphnia, cyclops, and bloodworms.

Behavior & Tank Mates

Similis Corys are excellent additions to community tanks. Ideal tank mates include other small, peaceful species such as tetras, rasboras, and other non-aggressive bottom dwellers. They should not be kept with large or aggressive cichlids.

Like all corydoras, they possess a modified intestine that allows them to occasionally dart to the water's surface to gulp atmospheric air, which is a perfectly natural behavior.