Red-spotted tetra
Copeina guttata
Also known as Redspotted copeina, Red spotted characin, Spotted copeina
Care at a glance
- Temperature
- 73–82°F (23–28°C)
- pH
- 5.5–7.5
- Adult size
- 3.9 in (10 cm)
- Minimum tank
- 32 gal (120 L)
- Temperament
- Mostly peaceful
- Social behavior
- Social
- Swim level
- Middle
- Difficulty
- Easy
- Breeding
- Easy
- Rarity
- Rare
- Origin
- Native to the middle Amazon River basin in South America.
- Family
- Lebiasinidae
Overview
Keep a small group in a roomy tank with open swimming space and a secure lid, since they are active and will jump. They are mostly peaceful but boisterous, so choose robust rather than timid tankmates. Males color up strongly and spar during spawning.
In the wild
Found in the middle Amazon in streams and flooded areas, often near the surface in open water. It is an adaptable fish that copes with a range of conditions. Males become boldly spotted and colorful in the breeding season.
Good to know
Copeina guttata is one of the larger members of the family Lebiasinidae, the males studded with rows of red spots and reaching around 10 cm. Unlike egg scattering tetras, it digs a shallow pit in the substrate and guards the eggs. Fishbase lists a maximum standard length near 7.6 cm, though aquarium fish are often reported a little larger.
Did you know
Rather than scattering eggs and abandoning them like most tetras, the male digs a pit in the sand and stands guard over the clutch.
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Keeping Red-spotted tetra?
Track water tests, reminders and stocking fit.
Related species

Splash tetra
Copella arnoldi2.2 in (5.5 cm)18 gal (70 L)68–82°F (20–28°C)
Purple pencilfish
Nannostomus rubrocaudatus1.2 in (3 cm)20 gal (75 L)75–82°F (24–28°C)
Golden pencilfish
Nannostomus beckfordi2.4 in (6 cm)18 gal (70 L)70–81°F (21–27°C)
Harrison's pencilfish
Nannostomus harrisoni2.2 in (5.5 cm)16 gal (60 L)73–82°F (23–28°C)One-lined Pencilfish
Nannostomus unifasciatus1.6 in (4 cm)17 gal (65 L)73–82°F (23–28°C)
Hockeystick pencilfish
Nannostomus eques1.4 in (3.5 cm)15 gal (55 L)72–82°F (22–28°C)