Tropheops (Tropheops tropheops) Breeding Guide

Breeding Tropheops tropheops: sexing, harem setup, the male's site-cleaning courtship, a 3-4 week mouthbrooding hold, fry care and keeping races separate.

Overview

Tropheops tropheops is a stout, algae-grazing mbuna endemic to Lake Malawi, found in shallow rocky habitat and reaching about 10-20 cm. The species occurs as several geographical races and subspecies and is a maternal mouthbrooder.

Sexing

Females are usually smaller and less colourful than males, and males show intense colour during their spawning displays. The male carries the egg-shaped spots on the anal fin that the female is attracted to, triggering sperm release during fertilisation.

Conditioning

Condition the group on a high-quality diet composed mainly of vegetable matter, suited to this herbivorous grazer that feeds on algae in shallow rocky habitat. Maintain alkaline water with a pH around 8.2-8.5 and a temperature of about 25-27 degrees Celsius (77-80 degrees Fahrenheit), and ensure females are in firm condition before pairing.

Breeding Setup

An aquarium of around 120 cm (48 inches) furnished with flat rocks and areas of open substrate provides spawning sites. Keep a harem of one male and at least three females, though the species will often also spawn in a community aquarium.

Spawning Behavior & Trigger

The male cleans and then displays around his chosen spawning site, which may be a flat rock surface or a shallow pit he excavates in the substrate. The female lays on the prepared site and takes the eggs into her mouth, where they are fertilised.

Egg & Fry Care

The female carries the eggs for around three to four weeks before releasing the free-swimming fry. The fry are large enough to take brine shrimp nauplii, microworm and powdered dried foods from birth.

Common Challenges

The species' subspecies and morphs should not be mixed in aquaria, as they will hybridise; keep a single race to produce pure fry. Because Tropheops will often spawn even in a community aquarium, unplanned cross-spawning with related mbuna is a real risk, making a dedicated single-race species tank the safest route to clean fry. As with other mbuna, holding females must be left undisturbed to avoid premature release of the brood, and a vegetable-rich conditioning diet suits this dedicated algae grazer.