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Fish

Convict Cichlid

Amatitlania nigrofasciata · also called convict cichlids, zebra cichlid

Least Concern → omnivore Rivers & wetlandsTemperate forest

Guarding a cloud of fry with bold black-and-white stripes on full display, a pair of convict cichlids defends its brood with a ferocity that belies the species’ small size, a combination of striking pattern and prolific breeding that has made it a fixture of the aquarium hobby.

Overview

The convict cichlid, Amatitlania nigrofasciata, is a hardy, boldly striped fish native to wetland and forest river and lake habitat across Guatemala, Honduras, El Salvador, Costa Rica, and Panama. Its distinctive prison-stripe pattern, exceptional ease of breeding, dedicated biparental care, and broad tolerance of varying water conditions make it one of the most widely kept and successfully naturalised cichlids anywhere in the world.

A stripe pattern and a breeding reputation

The convict cichlid’s bold stripes make it instantly recognisable, but it is the species’ breeding habits that have shaped its reputation among aquarists, since a single well-matched pair can produce brood after brood with little encouragement, often faster than a tank owner intended.

Status

Least Concern, remaining widespread and abundant across suitable wetland and forest habitat throughout Central America.

Convict Cichlid: common questions

How did the convict cichlid get its name?

This species has a body marked with bold, vertical black-and-white stripes, a striking pattern reminiscent of old-fashioned prison uniforms, which gives rise to its common name despite the pattern having no connection to the fish's actual behaviour.

Why is the convict cichlid considered easy to breed?

This species is considered one of the most prolific and easiest cichlids to breed in captivity, readily pairing off and producing frequent broods under a wide range of conditions, to the point that a single unmanaged pair can quickly overwhelm an aquarium with offspring.

Are convict cichlids good parents?

Yes, both parents aggressively guard the eggs and later shepherd the free-swimming fry as a tight group, defending them fiercely against any perceived threat, a form of dedicated biparental care that contributes to the species' high breeding success.

Has the convict cichlid spread beyond its native range?

Yes, this species has been introduced and become established outside its native Central American range in several warm regions of the world, aided considerably by its prolific breeding and broad tolerance of different water conditions.

Sources & further reading