
Peacock Cichlid
Aulonocara sp.
Family: Cichlidae • Origin: Africa
Peacock Cichlids are the more peaceful African cichlids with stunning metallic blue, red, and yellow colors. Less aggressive than Mbuna.
Is Peacock Cichlid Right for Your Tank?
Peacock Cichlid is an excellent choice for beginners — rated "intermediate" difficulty (2/5). They're hardy, forgiving of minor water parameter fluctuations, and generally easy to feed. They need at least 55 gallons — a mid-size tank commitment. Plan your space accordingly.
Peacock Cichlid is semi-aggressive — they can live with others but may bully smaller or slower fish. Choose tank mates carefully. They are territorial — provide adequate hiding spots and maintain enough space to reduce aggression. Expected lifespan: 8 years with proper care.
Common Mistakes with Peacock Cichlid
Relying on a heater without a thermometer
Peacock Cichlid needs 76–82°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 55 gallons
Many beginners underestimate tank size needs. Peacock Cichlid requires at least 55 gallons — ideally 75. Cramped tanks lead to stunted growth, aggression, and poor water quality.
Housing with peaceful nano fish
Peacock Cichlid is semi-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
- • Less aggressive than Mbuna
- • Hard alkaline water (pH 7.5-8.5)
- • Males are colorful, females plain
- • Keep 1 male to 3-4 females per variety
- • Sand substrate — they sift for food
Feeding: Cichlid pellets, frozen foods. Mix of meaty and plant-based.
Compatibility Notes: Less aggressive than Mbuna. Can be kept with other peacocks and mild haps. Hard alkaline water only.
Tank Setup & Water Parameters
Tank Requirements
- Minimum Tank Size
- 55 gallons
- Recommended Tank Size
- 75 gallons
- Swimming Level
- middle
Water Parameters
- Temperature
- 76–82°F
- pH Range
- 7.5–8.5
- Hardness (dGH)
- 12–25
- Water Type
- freshwater
Behavior & Temperament
- Temperament
- semi-aggressive
- Aggression Level
- 3/5
- Schooling
- No
- Territorial
- Yes
- Fin Nipper
- No
- Predatory
- No
- Diet Type
- omnivore
- Growth Rate
- moderate
Less aggressive than Mbuna. Can be kept with other peacocks and mild haps. Hard alkaline water only.
Breeding
- Breeding Type
- mouth brooder
- Breeding Difficulty
- easy
- Lifespan
- 8 years
Ideal For
Compatible Tank Mates
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Endler's Livebearer
Poecilia wingei

Platy
Xiphophorus maculatus

Molly
Poecilia sphenops

Swordtail
Xiphophorus hellerii

Bristlenose Pleco
Ancistrus cirrhosus

Mystery Snail
Pomacea bridgesii
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