Xingu Black Neon Tetra (Moenkhausia heikoi) – Brazil
For the safety of our animals, we now ship live fish exclusively via UPS Next Day Air. If your order contains this item, you will only see UPS Next Day Air as a shipping option during checkout.
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, dynamic coloration and natural movement in a well-balanced community tank.
| Species | Moenkhausia heikoi |
|---|---|
| Origin | Brazil (Rio Xingu) |
| Size | 1.5 inches (3.8 cm) |
| Temperament | Peaceful, social |
| Water Conditions | Temperature: 72–78°F (22–26°C), pH: 6.0–7.0, Hardness: 2–8 dGH |
| Compatibility | Best with similarly sized, peaceful community fish |
FAQ
What is the origin of the Xingu Black Neon Tetra?
The Xingu Black Neon Tetra is collected from the Rio Xingu in Brazil, where it has evolved in its natural habitat.
How should I care for this fish in my aquarium?
Provide a well-maintained tank with soft lighting, stable water parameters, and a group of at least 6 fish to encourage natural behavior and school formation.
Is this fish suitable for beginners?
This species is peaceful and adaptable, making it a good choice for intermediate aquarists who value natural-looking, dynamic fish behavior.




Luke Marshall –
The Xingu Black Neon Tetras are striking in a quiet, elegant way. They form a beautiful school and respond well to soft lighting. I’ve kept them with other peaceful community fish and they’ve stayed healthy for over six months.
Tracey Dowd –
They arrived alive and active. The dark body with a bright stripe is very unique compared to other neon tetras. I appreciate how they don’t dart around aggressively and instead move in a calm, coordinated way.
Trevor McDonald –
I was drawn to this species for its natural look and depth. The color shifts under different light conditions, and the fish seem more confident in a well-planted tank with moderate flow.