Xingu Black Neon Tetra (Moenkhausia heikoi) – Brazil

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The Xingu Black Neon Tetra carries the quiet intensity of the Rio Xingu itself: dark, reflective, and alive with contrast. A bold lateral stripe cuts through deep charcoal tones, glowing subtly under soft lighting while flashes of silver and bronze emerge as the school turns in unison. Unlike more delicate neon species, this tetra feels grounded, structured, confident, and best appreciated in aquariums designed with depth and intention.

Collected from Brazil and adapted carefully to aquarium life, Moenkhausia heikoi is an excellent choice for aquarists who appreciate subtle strength over exaggerated color.

What We Love About This Fish

• Deep Contrast: A striking horizontal stripe set against smoky body tones.
• Structured Schooling: Moves in tight, coordinated groups that command attention.
• River-Inspired Presence: Perfect for darker, tannin-influenced aquascapes.
• Distinctive Species: Less common than standard Black Neon Tetras, offering uniqueness without added difficulty.

Quick Care Guide

• Care Level: Easy to moderate and well-suited for established community aquariums

• Temperament: Peaceful and highly social, best kept in groups

• Diet: Omnivorous; accepts high-quality flakes, micro pellets, and frozen foods

• Max Size: Approximately 2 – 2.5 inches

• Average Purchase Size: 1 – 1.5 inches

• Lifespan: 3 to 5 years with proper care

• Tank Level: Midwater swimmer that utilizes open swimming space

• Activity Level: Moderate; active schooling fish that thrives in groups

• Group Size: Best kept in groups of 6 or more

• Shrimp Compatibility: Generally safe with adult shrimp; very small shrimplets may be at risk

• Recommended Tank Parameters:
  • Temperature: 75°–82°F (24°–28°C)
  • pH: 5.8–7.2
  • KH: 1–6 dKH
  • Minimum Tank Size: 20 gallons