Shining Tetra

Introduction

The Shining Tetra is a dazzling freshwater fish known for its iridescent silver-blue body that glimmers under aquarium lighting. Native to South America, it’s a peaceful schooling fish that thrives in community tanks. Their shimmer and gentle nature make them a favourite among aquarists.

Scientific Name

Moenkhausia pittieri

Common Name

• Shining Tetra

• Diamond Tetra (often used interchangeably)

Water Quality and Temperature

• Temperature: 22°C – 28°C (72°F – 82°F)

• pH: 6.0 – 7.5

• Hardness: Soft to moderately hard water (3 – 12 dGH)

• Prefers slightly acidic, well-filtered water with low current

Feeding

• Omnivorous

• Diet includes:

  • High-quality flakes and micro pellets

  • Frozen or live daphnia, brine shrimp, bloodworms

  • Occasional vegetable matter like blanched spinach or zucchini

• Feed 1–2 times daily in small amounts

Tank Mates

• Ideal with peaceful community fish such as:

  • Neon Tetras

  • Corydoras

  • Gouramis

  • Dwarf Cichlids (e.g., Apistogramma)

• Avoid aggressive or much larger fish

Substrates and Tank Decorations

• Dark substrate enhances their shimmering appearance

• Use driftwood, rocks, and soft-leaved plants

• Open swimming space is essential

• Low to moderate flow preferred

Suitable Plants

• Amazon Sword

• Cryptocoryne

• Java Fern

• Water Wisteria

• Floating plants can be added for shade

Sexing

• Males: More vibrant coloration, slightly more slender

• Females: Fuller-bodied, especially when carrying eggs

Breeding

• Egg scatterers

• Best bred in a separate breeding tank

• Use fine-leaved plants or spawning mops for egg laying

• Remove adults after spawning to prevent egg predation

• Fry hatch in about 24–36 hours and feed on infusoria or liquid fry food

Maximum Size and Longevity

• Size: Up to 5–6 cm (2–2.5 inches)

• Lifespan: 4 – 6 years in well-maintained conditions

General Information

Shining Tetras are schooling fish and do best in groups of 6 or more. Their subtle beauty and peaceful temperament make them a great addition to planted tanks and beginner-friendly setups. They appreciate stable water parameters and a calm environment.

A Fun Fact

Their diamond-like shine increases with age—older specimens can develop a radiant shimmer that truly lives up to their name!