Red Eye Tetra (Moenkhausia sanctaefilomenae) Per Pair

Description

Red Eye Tetra (Moenkhausia sanctaefilomenae) – Detailed Overview

The Red Eye Tetra is a small, peaceful freshwater fish known for its distinct red mark above the eyes and its shimmering silver body. Native to the rivers and streams of South America, including the Amazon Basin, Paraguay, and Guaporé regions, this species is popular among aquarists for its hardiness, schooling behavior, and ease of care, making it a great choice for both beginners and experienced hobbyists.

Appearance

The Red Eye Tetra features a sleek, streamlined body with a metallic silver sheen that reflects light beautifully in aquariums. Its most distinctive feature is the bright red spot just above its eye, which contrasts with the black-and-white band on the caudal (tail) fin. They grow up to 6-7 cm (2.5 inches) in length and look most striking when kept in a school of six or more.

Behavior and Temperament

These tetras are peaceful and social, thriving in groups of six or more. They exhibit schooling behavior, swimming actively throughout the middle and top layers of the tank. Although generally non-aggressive, they may nip at long-finned species, so it’s best to avoid keeping them with delicate fish like bettas or guppies.
They make excellent companions for:

• Neon Tetras
• Harlequin Rasboras
• Corydoras Catfish
• Dwarf Gouramis
• Angelfish (if carefully monitored)

Tank Requirements

The Red Eye Tetra is easy to care for and adaptable to a variety of conditions, but providing an optimal environment enhances their health and color.

• Tank Size: A minimum of 20 gallons for a small school.
• Water Temperature: 22°C to 28°C (72°F to 82°F).
• pH Range: 6.0 to 7.5 (prefer slightly acidic to neutral water).
• Water Hardness: 5 to 15 dGH.
• Tank Setup: Use a dark substrate, driftwood, and live plants like Anubias or Amazon Swords to mimic their natural habitat. Moderate lighting helps bring out their metallic shine.

Ensure the tank has plenty of swimming space along with a few shaded areas for resting. Good filtration and regular water changes are essential to keep water quality stable.

Diet and Feeding

Red Eye Tetras are omnivorous and enjoy a varied diet. In the wild, they feed on small insects, plants, and organic matter. In captivity, their diet should include:

• High-quality flakes or pellets
• Frozen or live foods (bloodworms, daphnia, and brine shrimp)
• Vegetables such as blanched spinach or peas

Feed them 2-3 times daily in small portions to avoid overfeeding and maintain water quality.

Breeding

Breeding Red Eye Tetras in captivity is possible but requires attention to specific conditions. They are egg scatterers and do not exhibit parental care. To encourage breeding:

1. Raise the water temperature to 26°C to 28°C (79°F to 82°F).
2. Use soft, slightly acidic water with a pH of 6.5-7.0.
3. Provide fine-leaved plants or spawning mops where females can lay eggs.

Once eggs are laid, remove the parents to prevent them from eating the eggs. The eggs hatch within 24-36 hours, and the fry become free-swimming within a few days. Initially, feed the fry infusoria or finely crushed flakes.

Health and Common Issues

While Red Eye Tetras are generally hardy, they are susceptible to common fish diseases, such as:

• Ich (White Spot Disease): Treatable by raising the temperature and using medications.
• Fin Rot: Prevented by maintaining good water quality.
• Stress-related Illnesses: Avoid overcrowding and sudden changes in water parameters.

Regular monitoring and a clean tank will help prevent most health issues.

Lifespan

With proper care, the Red Eye Tetra can live for 3 to 5 years in captivity. Consistent water changes, a varied diet, and peaceful tankmates will help them thrive throughout their lifespan.

Why Choose Red Eye Tetras?

Red Eye Tetras are perfect for aquarists looking for low-maintenance, attractive schooling fish. Their peaceful nature, hardiness, and shimmering beauty make them ideal for community tanks. Whether you are a beginner or an experienced aquarist, Red Eye Tetras are a lively and colorful addition to any freshwater setup.