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Fish

Eureka Red Peacock

Aulonocara jacobfreibergi
French name : Aulonocara jacobfreibergi Eureka

Aulonocara jacobfreibergi, known in the hobby as the Fairy or Eureka Red Peacock, is a cave-dwelling Malawi peacock found along rocky shorelines. The popular Eureka strain shows males with a fiery red-orange body, blue face and white-edged fins; females are silvery-grey. Larger and a bit bolder than most peacocks, it reaches around 15 cm and appreciates a tank of at least 300 litres with rock caves for shelter and spawning, plus open sand for sifting. Keep one male with a group of females and pair with peacocks or milder haplochromines rather than pugnacious mbuna. Maintain hard, alkaline water at 24-28°C, pH 7.7-8.6. As a sand-sifting micro-predator it does best on carnivore pellets and frozen mysis or brine shrimp, with protein kept moderate to prevent bloat.

Water
Freshwater
Origin
Rocky cave habitats, Lake Malawi
Adult size
15 cm
Diet
Carnivore
Temperament
Semi-aggressive
Difficulty
Intermediate
Keep in group of
4+
Eureka Red Peacock (Aulonocara jacobfreibergi)
Illustration

Water parameters

Temperature24 – 28 °C
pH7.7 – 8.6
Carbonate hardness (KH)10 – 18 °dKH
General hardness (GH)10 – 20 °dGH

Tank & stocking

Minimum tank volume430 L
Volume budget per individual 45 L — adds up with tank-mates
Minimum group size4 individuals (shoaling)

“Minimum tank volume” is a reasonable floor, not an absolute limit. The per-individual budget is used by the Aqua app to estimate how heavily a tank is stocked.

Frequently asked questions

What size aquarium does Eureka Red Peacock need?

Provide at least 430 litres for a small group to keep Eureka Red Peacock in good conditions.

What water parameters does Eureka Red Peacock need?

A temperature of 24–28 °C, pH 7.7–8.6.

Is Eureka Red Peacock peaceful or aggressive?

Its temperament is semi-aggressive.

What does Eureka Red Peacock eat?

Its diet: carnivore.

How many Eureka Red Peacock should be kept together?

It is a social species: keep a group of at least 4.

How big does Eureka Red Peacock get?

Around 15 cm as an adult.

Is Eureka Red Peacock suitable for beginners?

Care level: intermediate.

Planning a tank with Eureka Red Peacock?

AquaTender turns these parameters into live advice: it checks whether your tank is big enough, how heavily it's stocked, and whether your fish are compatible — then tracks water tests, photos and maintenance for you.

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Fish from the same biotope

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