Fire Ant Tetra Care Guide

Hyphessobrycon myrmex · Freshwater Fish

Fire Ant Tetra
AI-generated illustration of Fire Ant Tetra
Temperature
72-82°F
pH
5.5-7.5
Adult size
~1.5″ (3.8 cm)
Suggested tank
15+ gal
Group size
6+ together
Origin
South America
Family
Characidae

What Fire Ant Tetra look like

Hyphessobrycon myrmex, commonly known as the Fire Ant Tetra, exhibits a small, fusiform body that typically reaches a maximum adult size of approximately 1.5 inches (3.8 cm). The species is characterized by its striking warm reddish-orange coloration, which is reminiscent of the appearance of fire ants, and this hue is suffused throughout its translucent body. The Fire Ant Tetra possesses a well-defined lateral line, which aids in sensing vibrations in the water. Its dentition is adapted for an omnivorous diet, featuring small, conical teeth suitable for grasping both plant matter and small invertebrates. The finnage is relatively modest, with a small dorsal fin positioned towards the rear of the body and a forked caudal fin that enhances its agility in the water. There is minimal sexual dimorphism, although females may appear slightly fuller-bodied during breeding periods. This species lacks significant defensive adaptations, relying instead on its schooling behavior for protection against predators.

Behavior & temperament

The Fire Ant Tetra is a social fish that thrives in small to medium-sized schools, exhibiting a strong preference for a communal lifestyle. It predominantly occupies the mid-water column, where it engages in active swimming and foraging behaviors. This species is known for its peaceful temperament, making it an excellent candidate for community aquariums. Breeding behavior involves egg scattering, with females releasing eggs in open water, which are then fertilized by males. The Fire Ant Tetra does not exhibit territorial aggression, but it can display slight competition for food resources within a school, particularly in confined spaces.

Diet & feeding

In the wild, the Fire Ant Tetra is an omnivore, feeding on a varied diet that includes small invertebrates, plant material, and detritus. In captivity, it requires a balanced diet of high-quality flake food, supplemented with live or frozen foods such as brine shrimp and daphnia to ensure optimal health and coloration.

Behind the name

Hyphessobrycon (from Greek 'hyphē' meaning 'web' and 'sos' meaning 'body'; 'myrmex' from Greek meaning 'ant')

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Fire Ant Tetra?

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