Phoenix Tetra – Hemigrammus filamentosus

📄 Description & Care Instructions

The Phoenix Tetra (Hemigrammus filamentosus) is a small, peaceful characin native to the Rio Araguaia Basin in Brazil. This species is renowned for its striking appearance and active behavior, making it a popular choice among aquarium enthusiasts. 

Size: Typically reaches up to 4 cm in length.

Temperament: Peaceful and best kept in schools of at least six individuals to promote natural behavior.

Habitat: Prefers densely planted aquariums with subdued lighting, mimicking its natural environment.

Water Parameters:

• pH: 6.5–7.5

• Temperature: 22–28°C (72–82°F)

• Hardness: Soft to moderately hard water (1–12 dGH)

Diet: Omnivorous; accepts high-quality flake foods, live or frozen brine shrimp, and bloodworms.

Tankmates: Ideal companions include other peaceful species like rasboras, danios, and small cichlids. Avoid aggressive or larger fish that may intimidate or harm them.

Breeding: Spawning occurs in well-planted tanks with slightly acidic water. Post-spawning, remove adults to prevent egg predation. Fry hatch within 24–36 hours and can be fed infusoria or finely crushed flake food.