Loreto tetra
Hyphessobrycon loretoensis
Also known as Loreto's tetra, Loreto slender tetra
Care at a glance
- Temperature
- 72–81°F (22–27°C)
- pH
- 5.5–7.0
- Adult size
- 1.4 in (3.5 cm)
- Minimum tank
- 16 gal (60 L)
- Temperament
- Peaceful
- Social behavior
- Schooling
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Medium
- Rarity
- Rare
- Origin
- Native to the upper Amazon around the Loreto region of northeastern Peru.
- Family
- Characidae
Overview
Keep loreto tetras in a shoal of at least 8 to see their tight schooling behavior. They are peaceful, active, and undemanding as long as the water is soft and clean. They make good companions for other small, gentle characins and dwarf cichlids.
In the wild
Occurs in soft, often tannin stained streams and tributaries of the upper Amazon in Peru. These are calm, shaded waters with sandy bottoms, wood, and leaf litter. The fish shoal in the open middle water.
Good to know
Hyphessobrycon loretoensis is a slim, silvery tetra with a dark lateral line and a small tail spot. It reaches around 3.5 cm and is often confused with the similar Peruvian tetra. Both come from the same broad region of Peru.
Did you know
The neat black and silver stripe pattern makes a large school look like a single shimmering ribbon when the fish turn together.
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Keeping Loreto tetra?
Track water tests, reminders and stocking fit.
Related species

Black Neon Tetra
Hyphessobrycon herbertaxelrodi1.4 in (3.5 cm)16 gal (60 L)72–82°F (22–28°C)
Flag Tetra
Hyphessobrycon heterorhabdus1.4 in (3.5 cm)16 gal (60 L)70–81°F (21–27°C)
Black phantom tetra
Hyphessobrycon megalopterus1.4 in (3.6 cm)17 gal (65 L)70–82°F (21–28°C)
Peruvian tetra
Hyphessobrycon peruvianus1.6 in (4 cm)16 gal (60 L)72–81°F (22–27°C)
Red phantom tetra
Hyphessobrycon sweglesi1.6 in (4 cm)15 gal (55 L)72–82°F (22–28°C)
Rosy tetra
Hyphessobrycon rosaceus1.6 in (4 cm)15 gal (55 L)75–82°F (24–28°C)
