Lepidiolamprologus attenuatus Breeding Guide

How to breed the sand-dwelling Tanganyika predator Lepidiolamprologus attenuatus: large crater nests, substrate spawning and biparental brood guarding.

Overview

Lepidiolamprologus attenuatus is a slim predatory cichlid endemic to the southern part of Lake Tanganyika, where it inhabits shallow intermediate zones over sand. It is usually solitary, hovers above the bottom and feeds on fish and invertebrates. Notably it digs large crater-shaped nests in the sand, a substrate-spawning habit.

Sexing

Sexing is not straightforward; pairs are most reliably identified once they bond and claim a nesting territory. Behaviour around the excavated crater is the clearest sign of breeding activity.

Conditioning

As a carnivore feeding on fish and invertebrates, this species is conditioned on meaty foods. Allow fish to pair naturally rather than forcing groupings, given its predatory and territorial nature.

Breeding Setup

Provide a tank with open sand so the fish can dig its characteristic crater nest, reflecting its preference for sandy intermediate zones over rocky shelter. Maintain hard alkaline Tanganyika water around pH 8.0-9.0 and 24-27 C.

Spawning Behavior & Trigger

The fish digs a large crater-shaped nest in the sand even where rocky shelters are available, and spawns on the substrate within this excavated site, which the pair then defends.

Common Challenges

Open sand and adequate space for the crater nest are key. As a predator it will take small fish, so tankmates must be chosen carefully. Stable warm, hard, alkaline water is required throughout breeding.