Green Fire Tetra (Aphyocharax rathbuni), Rathbun's bloodfin tetra

The green fire tetra (Aphyocharax rathbuni), also called Rathbun's bloodfin tetra, is a small, active freshwater fish from South America known for its shimmering metallic green body and bright red-orange fins.

Quick Facts

Size: 1.5 to 2 inches (3.8 to 5 cm)

Lifespan: Up to 4 years

Care Level: Easy

Temperament: Peaceful, but can occasionally nip long fins

Schooling Size: Best in groups of 6 or more

Tank Requirements

Minimum Tank Size: 10 to 20 gallons

Water Temperature: 72°F – 80°F (22°C – 27°C)

pH Range: 6.0 – 7.5

Environment: Well-planted tanks with open swimming space in the middle and upper water layers. Dark substrate and subdued lighting help highlight their metallic colors.

Diet and Feeding

Omnivorous and unfussy

Accepts high-quality flakes, micro pellets, and frozen or live foods like brine shrimp and daphnia.