Elegant Emperor Black Tetra

The Emperor Black Tetra is a graceful, eye-catching freshwater fish known for its deep smoky body, bold horizontal stripe, and striking red or blue eyes. Elegant yet hardy, this peaceful schooling fish adds dramatic contrast and movement to any planted community aquarium.


Care Instructions

Temperament: Peaceful (males may display lightly)
Difficulty Level: Easy to Moderate
Adult Size: 1.5–2 inches
Lifespan: 5–6 years
Tank Size: 20 gallons minimum
Temperature: 73–80°F
pH: 6.0–7.5
Water Hardness: Soft to moderately hard

✔ Keep in groups of 6 or more
✔ Males display best coloration in schools
✔ Provide plants and dimmer lighting to enhance their dark tones
✔ Gentle to moderate filtration preferred

They thrive in planted aquariums with open swimming space and subdued lighting, which brings out their rich black coloration.

 Food

Emperor Black Tetras are omnivores and accept a wide variety of foods:

• High-quality flakes or micro pellets

• Frozen or live bloodworms

• Brine shrimp

• Daphnia

• Occasional freeze-dried treats

A varied diet helps maintain vibrant coloration and overall health.

Fun Facts

• Males often have extended fin rays, giving them a more dramatic look.
• Their eye color can appear red or electric blue depending on lighting.
• They may gently “spar” with each other — this is harmless display behavior.
• They look especially stunning in darker, blackwater-style aquariums.