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Tanganyika Clown (Eretmodus cyanostictus) — Cichlidae

Tanganyika Clown

Eretmodus cyanostictus
Family: Cichlidae
NT · Near Threatened

The Tanganyika Clown (Eretmodus cyanostictus) is a freshwater fish of the family Cichlidae that grows up to 9 cm.

Length
9 cm
Water
Freshwater
Diet
Herbivore
Behaviour
Solitary
Body shape
Flat / disc-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
Endemic to Lake Tanganyika in East Africa.
Edibility
Not eaten

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Description

Eretmodus cyanostictus is a small, stocky cichlid endemic to Lake Tanganyika in East Africa. The species lives in the turbulent, highly oxygenated shallow surf zone along rocky, gently sloping shores. Because of its heavy body and small swim bladder the fish has negative buoyancy and moves by hopping over the rocks. It scrapes algae from stones with its mouth and reaches about 9 cm. The brown body bears rows of blue spots, to which the species name (cyanostictus, blue-spotted) refers. Both parents brood the young in the mouth in turn. The species is considered Near Threatened (NT).

Frequently asked questions

How do you recognise the Tanganyika Clown?

The Tanganyika Clown has a flattened, disc-shaped body, is mainly brown and shows a spots pattern. Negative buoyancy; inhabits the surf zone and is mouthbrooded by both parents.

Where does the Tanganyika Clown live?

The Tanganyika Clown lives in fresh water and is mostly found around mixed bottom. Endemic to Lake Tanganyika in East Africa.

How big does the Tanganyika Clown get?

The Tanganyika Clown grows to a maximum of about 9 cm.

Is the Tanganyika Clown dangerous to humans?

No, the Tanganyika Clown 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.

Is the Tanganyika Clown edible?

The Tanganyika Clown is not usually eaten.

More photos

Tanganyika Clown (Eretmodus cyanostictus) — Cichlidae — 2
© President and Fellows of Harvard College (CC BY-NC 4.0) via GBIF — MCZ
Tanganyika Clown (Eretmodus cyanostictus) — Cichlidae — 3
iNaturalist ((c) Friedrich Rosian, some rights reserved (CC BY-NC))
Tanganyika Clown (Eretmodus cyanostictus) — Cichlidae — 4
iNaturalist ((c) Heinrich Human, some rights reserved (CC BY-NC))
Tanganyika Clown (Eretmodus cyanostictus) — Cichlidae — 5
iNaturalist ((c) K.Kawasaka, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Tanganyika Clown verified
Scientific name
Eretmodus cyanostictus
Family
Cichlidae

Appearance

Size class
Small verified
Max length (cm)
9.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Brown inferred
Pattern
Spots inferred
Tail shape
Rounded inferred
Mouth position
Inferior (downward) inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Natural range
Endemic to Lake Tanganyika in East Africa. inferred
Origin
Native sourced

Behaviour & biology

Diet
Herbivore sourced
Diet (detail)
Algae scraped from rocks sourced
Social behaviour
Solitary inferred
Territorial
Yes inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Negative buoyancy; inhabits the surf zone and is mouthbrooded by both parents. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
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

More from the family Cichlidae

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