Frontosa Breeding Guide (Cyphotilapia frontosa)

Breeding Cyphotilapia frontosa: a maternal mouthbrooder from Lake Tanganyika kept in harems, with small broods carried in the mouth for 35 to 50+ days.

Overview

The Frontosa, Cyphotilapia frontosa, is a large, slow-growing cichlid endemic to Lake Tanganyika, where it lives at depth and can exceed 33 cm and live over 25 years. It is a maternal, ovophilous mouthbrooder that is commonly bred in aquaria, though sexual maturity takes several years.

Sexing

Frontosa is essentially monomorphic. Adult males tend to grow larger, develop extended fins, and show a more pronounced nuchal hump than females, but juveniles cannot be sexed accurately.

Conditioning

These fish are slow-maturing and best conditioned in a stable, mature colony. FishBase reports a temperature range of 24 to 26 degrees Celsius and hard alkaline water around pH 8.0 or higher with hardness of about 8 to 12 dH.

Breeding Setup

Frontosa uses a harem breeding system; males are polygynous and should ideally be offered at least three to four females each. A large tank with low water movement and subdued lighting is preferred for breeding.

Spawning Behavior & Trigger

Because the eggs are large, broods are small, typically 10 to 50 eggs depending on the size of the female. The female takes the eggs into her mouth shortly after they are laid and fertilised.

Egg & Fry Care

The female incubates the eggs in her buccal cavity for an extended period of about 35 to 50+ days. Early-hatching embryos begin feeding on particles inhaled by the female while still in her mouth, so the female feeds for both herself and the young. Brooding females practice buccal feeding, and regular offerings of Artemia nauplii support fry development; fry remain in the mouth until independently viable.

Common Challenges

The very long maturation time and slow growth test patience, and the large adult size with high bioload demands a sizeable, well-filtered tank. Small brood sizes mean yields per spawn are modest compared to other mouthbrooders.