Convict Cichlid

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.

Min Tank
40 gal
Max Size
6"
Temperature
72-82°F
pH
6.5-8
Lifespan
9 years
School Size
Solo OK
Swim Level
middle
Hardness
5-15 dGH
aggressivebeginneromnivore

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 7282°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
7282°F
pH Range
6.58
Hardness (dGH)
515
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

40 gallon

Compatible Tank Mates

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