What tank size does a Semaphore Tetra need?

A Semaphore Tetra requires a minimum tank size of 76 litres (20 US gallons).

Are Semaphore Tetra aggressive?

Semaphore Tetra are classified as peaceful. Suitable for a peaceful community aquarium with other small, non-aggressive fish.

What temperature do Semaphore Tetra need?

Semaphore Tetra thrive in water temperatures between 24–28°C (75–82°F).

How hard is it to breed Semaphore Tetra?

Breeding Semaphore Tetra is considered difficult.

Semaphore Tetra Care Guide

Pterobrycon myrnae

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Bioload Score

1560

PeacefulModerateFreshwater

Max Size: 7.0 cm / 2.8"
Temperature: 24–28°C (75–82°F)
pH Range: 6.0 – 7.5
Min Tank Size: 76L (20 gal)
Min Group Size: 8 fish
Tank Level: Bottom-Mid
Origin: South America
Temperament: Peaceful
Difficulty: Moderate
Breeding Difficulty: Difficult

Diet

In the wild it feeds mainly on small invertebrates and insect larvae, but in aquaria it accepts high-quality flake foods, small pellets, and frozen or live fare such as daphnia and brine shrimp.

Community Compatibility

Suitable for a peaceful community aquarium with other small, non-aggressive fish.

Good to Know

The Semaphore Tetra, *Pterobrycon myrnae*, is a peaceful, schooling fish whose males flash striking black-and-white “semaphore” fin patterns when displaying.

Gender Differences

No easily discernible differences between genders

Stock Semaphore Tetra in Your Tank

Use our free stocking calculator to see if Semaphore Tetra fits your aquarium

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