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Pretty tetra — AI-generated side-view illustration

Pretty tetra

Holopristis pulchra

A dark wedge below a short golden tail-base mark

A deep silver-grey body carries a lower tail wedge and an orange-red upper iris.

Adult length
Up to 3.3 cm (standard length, without the tail fin)
Water temperature
23–27 °C
pH
5.5–7
Hardness
1–12 dGH
Natural habitat
Native to the upper Amazon basin.

Avoid much larger or boisterous companions.

View comparison →

Appearance and identification

Compare the wedge with the more concentrated tail spot of the head-and-tail-light tetra. Holopristis haraldi is a separate species.

Same-species behaviour

Keep six or more, preferably ten or more, with shelter and swimming room.

Space requirements

Use a 60 × 38 cm base.

Diet and feeding

Alternate small dry foods with suitable frozen or live foods.

Compatibility limits

Watch for intimidation and predation.

Aquarium environment

Use planted shelter and subdued lighting, leaving open water.

Sources

www.fishbase.se ↗ 2026-10-22

www.seriouslyfish.com ↗ 2026-10-22

researcharchive.calacademy.org ↗ 2026-10-22

kmweb.moa.gov.tw ↗ 2026-10-22

my-fish.org ↗ 2026-10-22

www.seriouslyfish.com ↗ 2026-10-22

researcharchive.calacademy.org ↗ 2026-10-22

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