Corydoras araguaiensis, also known as Corydoras sp. C68, is a species of Corydoras catfish from the freshwater rivers of South America. The "C" number, in this case, C68, is used to identify Corydoras species that are either undescribed or have limited distribution in the aquarium trade. Here's an overview of Corydoras araguaiensis (C68):

Appearance

• Coloration: Corydoras araguaiensis typically features a light, silvery body with a distinctive dark horizontal stripe running from the eye to the base of the tail. This stripe is bordered by a lighter area on either side, giving the fish a sleek, streamlined look. Their fins are generally clear or lightly colored.
• Size: They generally grow to about 2 to 2.5 inches (5 to 6.5 cm) in length, similar to many other Corydoras species.

Behavior and Temperament

• Temperament: Like most Corydoras species, Corydoras araguaiensis is peaceful and social, making them ideal for community aquariums. They are non-aggressive and do well with other small, peaceful fish.
• Social Behavior: They are best kept in groups of at least 4-6 individuals. Schooling behavior is natural for Corydoras, and keeping them in groups helps reduce stress and encourages active, social behavior.

Tank Requirements

• Tank Size: A minimum of a 20-gallon (75 liters) tank is recommended for a small group. A larger tank provides more space for swimming and better water stability.
• Substrate: A soft substrate, like fine sand or smooth gravel, is important to protect their sensitive barbels, which they use to forage for food along the bottom of the tank.
• Water Conditions:
  • Temperature: 72-78°F (22-26°C).
  • pH: Slightly acidic to neutral, around 6.0-7.5.
  • Water Hardness: Soft to moderately hard water (2-12 dGH) is preferred.
• Aquascaping: The tank should be well-decorated with hiding places created by plants, driftwood, and rocks. A natural setup mimics their habitat and provides security and comfort.

Diet

• Omnivorous: Corydoras araguaiensis are omnivores and will eat a variety of foods. A balanced diet should include high-quality sinking pellets or wafers, supplemented with live or frozen foods like bloodworms, brine shrimp, and daphnia. Providing a varied diet ensures they receive all necessary nutrients.

Summary

Corydoras araguaiensis (C68) is a peaceful and attractive species that makes a great addition to community aquariums. With their striking horizontal stripe and active, social behavior, they are a favorite among aquarists. Providing a suitable environment, maintaining good water quality, and keeping them in groups will help them thrive and display their natural behaviors.