Nambiquara royal tetra
Inpaichthys nambiquara
Also known as Hasemania nambiquara, Nambiquara tetra
FreshwaterFish
Care at a glance
- Temperature
- 73–81°F
- 23–27°C
- pH
- 5.5–7.0
- Adult size
- 1.3 in
- 3.4 cm
- Minimum tank
- 14 gal
- 54 L
- Temperament
- Peaceful
- Social behavior
- Schooling
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Egg scatterer
- Rarity
- Rare
- Family
- Characidae
- Origin
- Upper Juruena basin, Mato Grosso, Brazil
Overview
The Nambiquara royal tetra is a small, peaceful schooling fish, kept much like its close relative the royal tetra. It is a step up from the easiest fish.
Did you know
The Nambiquara royal tetra was moved out of the silvertip genus by a broad 2024 study of the characins. It went into Inpaichthys, the royal tetra's own small genus. In effect, the study promoted this modest little fish into aquarium royalty.
Caring for the Nambiquara royal tetra
Keep Nambiquara royal tetras in a group of at least eight to ten. A group is comfortable in 14 gal (54 L) or more, with planting and open swimming room. A dark substrate, driftwood, leaf litter and dim light from floating plants bring out their violet-blue sheen and keep the group confident.
Give them soft, warm water at 73 to 81°F (23 to 27°C), with a pH of 5.5 to 7.0 and low hardness. Gentle flow and clean, stable water keep them healthy. Feed small foods, such as micro pellets and crushed flake, with regular frozen or live daphnia, cyclops and baby brine shrimp.
Nambiquara royal tetras are peaceful and swim in the middle of the tank. Pair them with other small, calm community fish, such as pencilfish, small rasboras, dwarf cichlids and corydoras. They are egg scatterers. Their royal tetra relatives breed readily, but breeding records for this species itself are limited.
Good to know
The Nambiquara royal tetra was first described as Hasemania nambiquara, in the family Characidae. Its name honors the Nambiquara people of its home region in Mato Grosso.
In the wild
The Nambiquara royal tetra comes from small, clear forest creeks in the upper Rio Juruena system. That river belongs to the Rio Tapajos basin, in Mato Grosso, Brazil.
Weekly picks
Tank mates
The Nambiquara royal tetra is a peaceful, schooling species that keeps to the middle. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Red line halfbeak
Hemirhamphodon phaiosoma
Freshwater2.6 in (6.5 cm) · 14 gal (54 L)73–81°F (23–27°C)
Green lace shrimp
Atyoida pilipes
Freshwater2.8 in (7 cm) · 14 gal (54 L)73–82°F (23–28°C)
Dwarf white horseface loach
Kottelatlimia hipporhynchos
Freshwater2 in (5 cm) · 14 gal (54 L)72–81°F (22–27°C)
Cherry barb
Rohanella titteya
Freshwater2 in (5 cm) · 14 gal (54 L)72–81°F (22–27°C)
Fire halfbeak
Hemirhamphodon kapuasensis
Freshwater2.4 in (6 cm) · 14 gal (54 L)73–81°F (23–27°C)
Elegant darter characin
Ammocryptocharax elegans
Freshwater1.6 in (4 cm) · 14 gal (54 L)73–81°F (23–27°C)
Common questions
What size tank does a Nambiquara royal tetra need?
A Nambiquara royal tetra needs at least 14 gal (54 L). It spends most of its time in the middle.
What temperature and pH does a Nambiquara royal tetra need?
A Nambiquara royal tetra is comfortable at 73–81°F (23–27°C) with a pH of 5.5–7.0.
What does a Nambiquara royal tetra eat?
A Nambiquara royal tetra eats small foods, such as micro pellets and crushed flake. Give it regular frozen or live daphnia, cyclops and baby brine shrimp as well.
How big does a Nambiquara royal tetra get?
An adult Nambiquara royal tetra reaches about 1.3 in (3.4 cm).
Does a Nambiquara royal tetra need a group?
Yes. A Nambiquara royal tetra is a schooling species and should be kept in a group, not singly.
How does a Nambiquara royal tetra breed?
The Nambiquara royal tetra is an egg-scattering spawner. Its royal tetra relatives breed readily, but breeding records for this species itself are limited.
Related species
1.4 in (3.5 cm)14 gal (54 L)72–81°F (22–27°C)Black arrow tetra
Inpaichthys luizae
1.4 in (3.5 cm) · 14 gal (54 L)
1.4 in (3.5 cm)15 gal (55 L)75–81°F (24–27°C)Royal tetra
Inpaichthys kerri
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Inpaichthys parauapiranga
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Hyphessobrycon heliacus
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1.3 in (3.4 cm)15 gal (55 L)68–79°F (20–26°C)Negodagua tetra
Hyphessobrycon negodagua
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1.4 in (3.5 cm)10 gal (38 L)72–82°F (22–28°C)Black neon tetra
Hyphessobrycon herbertaxelrodi
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