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Chestnut killifish (Aphyosemion castaneum) — Nothobranchiidae

Chestnut killifish

Aphyosemion castaneum

The Chestnut killifish (Aphyosemion castaneum) is a freshwater fish of the family Nothobranchiidae that grows up to 3 cm.

Length
3.4 cm
Water
Freshwater
Diet
Carnivore
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless
Range
Africa: Congo, Congo Dem Rp

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Description

The Chestnut killifish is a killifish (Nothobranchiidae) from small forest streams, pools and swamps of the Congo basin in Central Africa. The species grows to about 5 cm; males are brightly coloured with red, blue and yellow spots and coloured fin margins. As a fish of shallow, often temporary and oxygen-poor water it snaps at insect larvae, small crustaceans and worms; its eggs can survive a dry period in the soil. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Chestnut killifish?

The Chestnut killifish has a torpedo-shaped body, is mainly multicoloured and shows a spots pattern.

Where does the Chestnut killifish live?

The Chestnut killifish lives in fresh water and is mostly found around open water. Africa: Congo, Congo Dem Rp

How big does the Chestnut killifish get?

The Chestnut killifish grows to a maximum of about 3 cm.

Is the Chestnut killifish dangerous to humans?

No, the Chestnut killifish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

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All data

Identification

English name
Chestnut killifish sourced
Scientific name
Aphyosemion castaneum
Family
Nothobranchiidae

Appearance

Size class
Small verified
Max length (cm)
3.4 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Multicoloured sourced
Pattern
Spots sourced
Tail shape
Rounded inferred

Habitat & distribution

Water type
Freshwater sourced
Substrate
Open water sourced
Natural range
Africa: Congo, Congo Dem Rp sourced
Origin
Native inferred

Behaviour & biology

Diet
Carnivore inferred
Diet (detail)
Small fishes, crustaceans and invertebrates inferred
Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
Yes inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Aphyosemion

More from the family Nothobranchiidae

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