Image of a Convict Cichlid, Amatitlania nigrofasciata

Convict Cichlid

Amatitlania nigrofasciata

Reviewed for accuracy · Last updated Jan 2, 2026, 7:24 PM

Convict Cichlids are territorial and bold fish that form strong pair bonds and display intense aggression when defending territory or fry.

Key Information

Water Type

Freshwater

Temperament

Aggressive

Care Level

Easy

Minimum Tank Size

32 gal (120 L)

Maximum Size

5 in (13 cm)

Lifespan

8–10 years

Diet

Omnivore

Migration

Resident

Convict Cichlid Behavior and Compatibility

Convict Cichlids are aggressive, especially during breeding periods. They are best kept with other robust and similarly sized fish. Tank mates must tolerate territorial behavior.

Large Central American cichlids or armored catfish are suitable companions. Each species should have defined territories and hiding spaces. Tank size plays a major role in reducing conflict.

Avoid small, peaceful, or slow-moving species. These fish are likely to be harassed or killed. Careful planning is essential for community setups.

Best Tank Mates for Convict Cichlid

Convict Cichlid Tank Setup and Care

Convict Cichlids adapt well to a wide range of freshwater aquarium conditions. They prefer stable parameters with moderate filtration and consistent water quality. Strong filtration is important due to their digging and waste production.

A tank with rocks, caves, and sturdy décor is essential for territory definition. They frequently rearrange substrate, so decorations should be secure. Open areas combined with hiding spots help reduce constant aggression.

Regular water changes support health and reduce stress-related behavior. They tolerate beginner mistakes but thrive with consistent maintenance. Stable environments encourage natural behavior and longevity.

Convict Cichlid Diet and Feeding

Convict Cichlids are omnivorous and highly adaptable feeders. High-quality cichlid pellets or flakes should be the dietary foundation. These foods provide balanced nutrition for daily health.

Protein-rich foods such as frozen bloodworms and brine shrimp are readily accepted. These enhance growth, coloration, and breeding readiness. Feed such foods several times per week in moderation.

Vegetable matter should also be included regularly. Blanched spinach, peas, or spirulina-based foods aid digestion. A varied diet prevents nutritional deficiencies.

Convict Cichlid Breeding and Reproduction

Convict Cichlids are among the easiest cichlids to breed in captivity. Pairs form naturally and often breed without special intervention. Flat rocks or caves are chosen as spawning sites.

The female lays eggs which are immediately fertilized by the male. Both parents aggressively guard eggs and territory. Spawning can occur frequently under good conditions.

Eggs hatch within a few days, and fry are closely protected. Parents lead fry to feeding areas and defend them fiercely. Remove fry only if aggression becomes excessive.

Convict Cichlid Water Parameters

72–82 °F (22–28 °C)
6.5–8.0
6–20 dGH
1.000–1.001 SG

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