Details

Diamond Tetra (Moenkhausia pittieri)

A Brilliant Freshwater Schooling Fish with Stunning Iridescent Scales

Description

The Diamond Tetra (Moenkhausia pittieri) is one of the most eye-catching freshwater tetras available. Native to the waters of Venezuela, this peaceful schooling fish develops dazzling iridescent scales that shimmer with shades of silver, blue, green, and gold under aquarium lighting. Mature males also develop elongated dorsal and anal fins, making them an elegant centerpiece in planted community aquariums.

Diamond Tetras are hardy, active, and easy to care for, making them an excellent choice for both beginner and experienced aquarists. Their peaceful nature and beautiful coloration make them a favorite among planted tank enthusiasts.

Care Level

Easy

Temperament

Peaceful, active schooling fish

Size

Up to 2.5 inches (6 cm)

Lifespan

Approximately 3–6 years with proper care.

Diet

Diamond Tetras are omnivores and readily accept a wide variety of foods, including:

• High-quality flake food

• Micro pellets

• Frozen bloodworms

• Brine shrimp

• Daphnia

• Freeze-dried foods

A varied diet helps enhance their brilliant coloration and overall health.

Tank Size

20 gallons minimum

Larger aquariums are recommended for schools of eight or more fish, allowing them to display their natural schooling behavior.

Water Parameters

• Temperature: 72–82°F (22–28°C)

• pH: 6.0–7.5

• GH: 2–15 dGH

Stable water conditions and regular water changes will help maintain vibrant coloration and long-term health.

Behavior & Compatibility

Diamond Tetras are peaceful schooling fish that thrive when kept in groups of at least six to eight individuals. They are excellent additions to community aquariums and are compatible with many peaceful species, including:

• Corydoras Catfish

• Rasboras

• Angelfish

• Dwarf Cichlids

• Gouramis

• Plecos

• Other peaceful tetras

A planted aquarium with driftwood, open swimming space, and subdued lighting helps showcase their spectacular iridescent coloration.

Notes

• Best kept in schools of 6–8 or more.

• Males develop longer fins and more intense coloration as they mature.

• Their diamond-like scales become increasingly brilliant with age and proper nutrition.

• Excellent choice for planted aquariums and peaceful community tanks.

• Their shimmering appearance is most noticeable under quality aquarium lighting.

Frequently Asked Questions

Q: How many Diamond Tetras should I keep together?
A: They are schooling fish and should be kept in groups of at least six, although eight or more is ideal.

Q: Are Diamond Tetras aggressive?
A: No. They are peaceful community fish that do well with other non-aggressive species.

Q: Can they live with shrimp?
A: Adult shrimp are generally safe, but very small shrimp or shrimplets may occasionally be eaten.

Q: Will their colors improve over time?
A: Yes. Mature Diamond Tetras develop their signature sparkling scales and males become even more colorful when provided with excellent water quality and a varied diet.