Calvus

Photo: 5snake5, CC0, via Wikimedia Commons

African Cichlidae

Calvus

Altolamprologus calvus

territorialpair

14 cm

Adult size

300 L

Minimum volume

2

Minimum group

8 years

Lifespan

Water parameters

Understand these values
pH7.5 – 9
49
Hardness (GH)8 – 20°
0°30°
Temperature24 – 27°C
18°C32°C
Genus
Altolamprologus
Diet
carnivore
Social life
pair

In the wild

Overview

Its genus name refers to its very high back profile, and calvus (“bald”) to a scaleless patch between the eyes. Its extremely flattened body lets it slip into rock crevices to hunt eggs, fry and small fish there, and its thick scales protect it.

Scientific name
Altolamprologus calvus (Poll, 1978)
Classification
Cichliformes › Cichlidae
IUCN Red List
Near threatened (NT)

Natural habitat

Endemic to Lake Tanganyika (mainly its southwestern part)

Observations (GBIF) and localities Native countries Rivers and lakes

It lives only in the rocky areas of the shores and islands of Lake Tanganyika, where it patrols a few dozen centimetres from the rocks.

Behaviour

Territorial but peaceful towards fish too large for its mouth, it is rather shy: keep it with calm Tanganyikans (Julidochromis, Neolamprologus, Cyprichromis, Synodontis) and never with mbuna. In pairs or colonies. It prefers live or frozen prey and often refuses dry food.

Sources:FishBase Seriously Fish GBIF · Base map: Natural Earth

Calvus · Aquarius