Jaguar Cichlid Breeding Guide

How to breed Parachromis managuensis, a large biparental Central American substrate spawner that digs pits and produces very large broods.

Overview

Parachromis managuensis is a large predatory cichlid whose natural range extends down the eastern side of Central America, from the River Ulua in Honduras through Nicaragua to the River Matina in Costa Rica (Seriously Fish). It is a biparental substrate spawner: a pair cleans a flat surface, spawns on it and then moves the hatchlings into pits dug in the substrate, guarding the brood together. The species can reach about 24 inches but is usually smaller in aquaria.

Sexing

Males grow larger than females, reaching a total length of 65 cm versus about 40 cm in females (Wikipedia). Males have pointed dorsal and anal fins and generally more colour, while females are smaller and more rounded and lack the elongated extensions to the dorsal fin. During spawning the fins of males often darken to a near-black coloration.

Breeding Setup

Because the species is large and aggressive, a spacious tank with a sand substrate and flat surfaces for egg deposition is required; Seriously Fish lists minimum aquarium dimensions of 120 x 45 x 37.5 cm (about 212 litres) for younger fish and much larger volumes for adults over 12 inches. Suitable water for the species is around 23-25 °C, pH 6-8 and hardness 6-18 °dH (Seriously Fish).

Spawning Behavior & Trigger

The parents clean a chosen surface and spawn there, after which the eggs and hatchlings are transferred to spawning pits dug into the substrate (Seriously Fish). Both parents tend the brood. The best way to obtain a compatible pair, as with most large Central American cichlids, is to grow several juveniles together and let a pair form.

Egg & Fry Care

Broods are very large: a single spawn from 12-inch parents can produce around 3000 fry (Seriously Fish). The parents provide care for up to about 6 weeks, by which point fry reach roughly 15-25 mm. Older fry must be removed at this stage, otherwise the parents will kill them while guarding a new batch.

Common Challenges

The extreme aggression of this species makes pairing difficult, and an incompatible partner may be injured or killed. The very large broods require substantial grow-out space and the timely separation of older fry before the next spawn.