Zebra Cichlid xant. (Amatitlania nigrofasciata) — 4-5cm

Overview

The Zebra Cichlid, more commonly known as the Convict Cichlid, is one of the most recognizable and widely kept cichlids for sale uk. Scientifically classified as Amatitlania nigrofasciata, this hardy Central American species earns its common name from the distinctive black vertical bars against a grey to bluish-grey background that resemble prison stripes. Available as tropical fish for sale uk through most aquatic retailers, convict cichlids are often recommended to beginners due to their incredible hardiness and ease of care—however, their aggressive temperament and prolific breeding require careful planning and appropriate tank selection. Adults reach approximately 10cm, with females slightly smaller, and thrive in aquariums from 114 litres upward. Native to freshwater systems in Guatemala, Honduras, and El Salvador, these fish bring bold personality and fascinating parental care behavior to the aquarium.

Appearance

The zebra cichlid displays 8-9 bold black vertical bars against a grey-blue to white background, creating the striking striped pattern that gives the species its common names. Males are larger, with more pointed dorsal and anal fins, and may develop a nuchal hump on the forehead as they mature. Females are smaller and rounder, often showing orange or pink coloration on the belly and lower body, particularly when breeding. There are also popular color variants including albino (pink-white body with red eyes) and various artificially selected forms. Juveniles show the characteristic barring from an early age. The overall appearance is robust and powerful, with a deep body and strong, purposeful demeanor.

Natural Habitat

In the wild, convict cichlids inhabit fast-flowing streams and rivers with rocky substrates in Central America. They're found in areas with strong current, high oxygen levels, and abundant rocky caves and crevices for shelter and spawning. Natural habitats typically have slightly alkaline water, though these fish prove remarkably adaptable to a wide pH range in captivity. The rocky environment provides territories, spawning sites, and refuge from predators. Aquarium setups should include rockwork and caves to replicate these natural conditions and provide essential breeding sites.

Aquarium Setup

A proper aquarium for convict cichlid pairs requires adequate space and appropriate decor. A minimum of 114 litres suits a single pair, though larger tanks (200+ litres) are necessary if keeping with other cichlids. Use sand or smooth gravel substrate, as these fish dig extensively, particularly when spawning. Provide numerous caves, rock formations, overturned terracotta pots, and visual barriers to create territories and reduce aggression. Robust filtration is essential—these messy cichlids produce substantial waste. Avoid delicate plants, as convicts dig and rearrange substrate constantly. Hardy species like Java fern or Anubias attached to wood or rocks may survive. Secure all decorations, as these powerful fish will excavate around and potentially topple unsecured items.

Feeding

Convict cichlids are unfussy omnivores accepting virtually any aquarium food. Offer high-quality cichlid pellets as a staple, supplemented with frozen or live foods such as bloodworms, brine shrimp, and daphnia. Include vegetable matter—spirulina flakes, blanched vegetables, or algae wafers—to provide balanced nutrition. Feed once or twice daily in portions consumed within 2-3 minutes. These enthusiastic eaters are prone to obesity if overfed. Varied nutrition supports health, coloration, and breeding condition. Adults will also consume smaller fish or fry if hungry, so never assume uneaten tankmates are safe.

Behaviour

The convict cichlid breeding behavior is legendary in the aquarium hobby. Pairs form strong, lasting bonds and cooperate intensively in parental care, guarding eggs and fry with extraordinary dedication and aggression. Outside breeding, convicts are territorial and assertive, readily challenging fish several times their size. Males establish territories and defend them vigorously, while females often assist in territory defense. The aggression intensifies dramatically when spawning—a breeding pair will attack any fish approaching their nest area, making community arrangements extremely difficult. The upside is fascinating parental behavior: both parents fan the eggs, move fry, and aggressively protect their young for several weeks.

Tank Mates

Selecting zebra cichlid tank mates requires extreme caution. In most cases, a species-only tank is the safest approach. If attempting a community, choose only robust Central American cichlids of similar size and temperament in a very large tank (400+ litres), and be prepared for aggression. Large, armored catfish like Synodontis species may work. Absolutely avoid small community fish, slow-moving species, long-finned fish, shrimp, and peaceful cichlids—all will be harassed, injured, or killed. When breeding, the pair will dominate the entire tank regardless of size, attacking any other fish relentlessly. Many aquarists keep convicts alone or in a single pair to avoid compatibility issues entirely.

Breeding

Convict cichlids are among the easiest freshwater fish to breed and require no special conditions or encouragement. A compatible pair will spawn in any available cave or flat surface, with the female depositing 100-300 eggs and both parents guarding them fiercely. Eggs hatch in 3-4 days, and fry become free-swimming within a week. Both parents herd the fry cloud, moving them around the tank and protecting them from any perceived threats. Fry accept crushed flake food, newly hatched brine shrimp, and finely powdered fry foods from day one. The challenge isn't breeding but controlling the population—pairs spawn every 3-4 weeks, and without intervention, convicts will quickly overstock any aquarium.

Special Considerations

While often recommended as buy tropical fish online uk starter cichlids due to hardiness, convict cichlids' aggression makes them problematic for genuine community tanks. Their prolific breeding also creates challenges—be prepared to cull, separate, or rehome fry, as most retailers won't accept common species like convicts. Tank decor should be robust and well-secured, as these fish excavate vigorously and rearrange everything. Despite their small size, they're surprisingly destructive and dominant. The species' hardiness and fascinating parental care make them rewarding for dedicated cichlid keepers but frustrating if mismatched with inappropriate tankmates or unprepared owners.

Why Buy from Tropical Fish Co

Tropical Fish Co supplies healthy, well-conditioned freshwater fish for sale uk, including popular Central American cichlids like the Convict Cichlid. We offer various sizes from juveniles to breeding-age adults and multiple color forms including wild-type and albino variants. Every fish is quarantined and conditioned before dispatch, and we provide honest care advice including compatibility warnings and breeding management tips. Our comprehensive care sheets ensure you understand the commitment before purchase. With secure nationwide delivery and a reputation for exceptional customer service, Tropical Fish Co supports your success with cichlids from first setup through long-term care. Contact our experienced team for personalized advice on south american cichlids for sale and setup planning.