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African longfin tetra — AI-generated side-view illustration

African longfin tetra

Bryconalestes longipinnis

A short dark rear band and a flowing male dorsal fin

This African tetra has a silver-gold body and a dark tail-base band.

Adult length
Up to 16.4 cm
Water temperature
22–26 °C
pH
6–7.5
Hardness
5–19 dGH
Native range
Africa: present along the Atlantic border of the African continent from Gambia to the Democratic Republic of the Congo. Generally found in upper as well as lower river courses and may even occur in brackish waters of estuarine areas. Only Brycinus species that inhabits smaller water courses.
Natural habitat
Inhabits upper and lower reaches of large rivers and brackish estuaries, also entering smaller rivers and streams.

Large, active individuals can intimidate smaller companions. Sensitive to deteriorating water quality and excessive nitrate; maintain regular water changes and stable, clean conditions.

View comparison →

Appearance and identification

Compare its rear band and extended dorsal fin with the Congo tetra’s iridescence and male tail extensions.

Same-species behaviour

Keep at least six.

Space requirements

A 120 × 38 cm base. Keep a long swimming route and shaded retreats.

Diet and feeding

Rotate suitable dry, frozen and live foods; newly imported fish may initially feed selectively.

Compatibility limits

Watch for intimidation of small, slow or shy fish.

Aquarium environment

Combine open water with planted shelter and floating shade.

Sources

www.fishbase.se ↗ 2026-10-25

www.seriouslyfish.com ↗ 2026-10-22

researcharchive.calacademy.org ↗ 2026-10-22

www.acshop.com.tw ↗ 2026-10-22

www.wetspottropicalfish.com ↗ 2026-10-22

www.fws.gov ↗ 2026-10-22

fishmorph.com ↗ 2026-10-22

www.fishbase.se ↗ 2026-10-22

www.seriouslyfish.com ↗ 2026-10-22

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