
Convict Cichlid
Amatitlania nigrofasciata
Family: Cichlidae • Origin: Various
Convict Cichlid (Amatitlania nigrofasciata) is a aggressive cichlid reaching 6 inches. Can be kept singly. Minimum tank size: 40 gallons.
Is Convict Cichlid Right for Your Tank?
Convict Cichlid is an excellent choice for beginners — rated "beginner" difficulty (1/5). They're hardy, forgiving of minor water parameter fluctuations, and generally easy to feed. They need at least 40 gallons — a mid-size tank commitment. Plan your space accordingly.
Convict Cichlid is aggressive and best kept alone or with other robust species that can hold their own. Not suitable for peaceful community tanks. They are territorial — provide adequate hiding spots and maintain enough space to reduce aggression. Expected lifespan: 9 years with proper care.
Common Mistakes with Convict Cichlid
Relying on a heater without a thermometer
Convict Cichlid needs 72–82°F. Heaters malfunction or drift over time — always use a separate thermometer to verify. Temperature swings of even 3–4°F can trigger stress and disease, particularly ich.
Putting them in a tank under 40 gallons
Many beginners underestimate tank size needs. Convict Cichlid requires at least 40 gallons — ideally 60. Cramped tanks lead to stunted growth, aggression, and poor water quality.
Housing with peaceful nano fish
Convict Cichlid is aggressive and territorial — small, peaceful species like neon tetras, endlers, or celestial pearl danios will be stressed, bullied, or eaten. Choose tank mates that can hold their own.
Care Tips
- • Max size: 6 inches
- • Temperature: 72-82°F
- • pH: 6.5-8
- • Can be kept alone or in pairs
- • aggressive temperament — only with similar-sized robust fish
Feeding: Standard omnivore diet. Accepts foods appropriate for Cichlidae species.
Compatibility Notes: Typical aggressive Cichlidae species.
Tank Setup & Water Parameters
Tank Requirements
- Minimum Tank Size
- 40 gallons
- Recommended Tank Size
- 60 gallons
- Swimming Level
- middle
Water Parameters
- Temperature
- 72–82°F
- pH Range
- 6.5–8
- Hardness (dGH)
- 5–15
- Water Type
- freshwater
Behavior & Temperament
- Temperament
- aggressive
- Aggression Level
- 4/5
- Schooling
- No
- Territorial
- Yes
- Fin Nipper
- No
- Predatory
- No
- Diet Type
- omnivore
- Growth Rate
- moderate
Typical aggressive Cichlidae species.
Breeding
- Breeding Type
- egg layer
- Breeding Difficulty
- moderate
- Lifespan
- 9 years
Ideal For
Compatible Tank Mates
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