Yellow Peacock Cichlid
Aulonocara baenschi
A striking Lake Malawi cichlid known for the male's vibrant yellow coloration and metallic blue face. As a 'Peacock' cichlid, they are benthic carnivores that require fine sand to sift for invertebrates. While considered one of the more mild-mannered African cichlids, they still require hard, alkaline water and careful management of aggression, usually via an all-male display tank or a harem structure.
Yellow Peacock Cichlid At a Glance
Yellow Peacock Cichlid Tank Requirements
Will Yellow Peacock Cichlid fit in your tank?
Care guides tell you what Yellow Peacock Cichlid needs, the next question is whether your tank can safely provide it. Test Yellow Peacock Cichlid against your tank size, maintenance needs, and the fish you already keep before you buy.
Yellow Peacock Cichlid Water Parameters
Yellow Peacock Cichlid Temperament & Compatibility
Yellow Peacock Cichlid Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male
Males display the brilliant yellow body and blue facial markings. They are territorial towards other males of the same species or similarly colored fish. Best kept as a single specimen in an all-male tank or with a harem of females.
Differs in 3 traits from base species
Also known as: Show Male, Fully Colored
Female / Juvenile
Females and juveniles are a drab, mottled grey-brown, which provides camouflage in the wild. They are significantly more peaceful and should be kept in a group of 3-4 if being kept with a male to disperse his breeding harassment.
Differs in 3 traits from base species
Also known as: Unsexed, Drab
Yellow Peacock Cichlid Care Guide Summary
The Yellow Peacock Cichlid, scientifically known as Aulonocara baenschi, belongs to the Cichlids - African family group. Adults reach a maximum size of approximately 13 cm and have a fusiform body shape with a moderate growth rate. Classified as semi-aggressive, this species primarily occupies the bottom and mid-level zones of the aquarium and produces a high level of biological waste.
To thrive, the Yellow Peacock Cichlid requires a freshwater only aquarium with a minimum volume of 200 litres and a tank length of at least 120 cm. Water temperature should be maintained between 24°C and 28°C, with a pH range of 7.8–8.6 and a general hardness of 10–25 dGH. A moderate water flow is preferred.
The Yellow Peacock Cichlid is a rewarding species to keep, provided its core environmental needs are met. This species is available in 2 varieties: Male and Female / Juvenile. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Yellow Peacock Cichlid Habitat Setup
When setting up an aquarium for the Yellow Peacock Cichlid, a moderate water flow best suits their natural preferences. Because this species occupies the bottom and mid-level zones, the aquarium layout should prioritise open swimming space in the centre of the tank for free movement and sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include a sand substrate to accommodate their sifting behaviour. Keepers should note that expect substrate disturbance, so lightweight décor should be secured.
Yellow Peacock Cichlid Compatibility Notes
Classified as semi-aggressive, the Yellow Peacock Cichlid is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, conspecific aggression can be intense, especially in smaller tanks and territorial behaviour may cause issues if hiding spots or floor space are limited. Selecting tankmates that favour different water layers from the bottom and mid-level zones can help reduce competition and territorial overlap.
Who Yellow Peacock Cichlid Is Actually For
Yellow Peacock Cichlid is best for a fishkeeper who wants a species that can settle into a calmer community setup and can provide someone who understands its individual space requirements. It makes the most sense for a hobbyist who will actually build around its needs, especially sand.
The most common mistake is treating Yellow Peacock Cichlid like any other community fish and skipping the soft sand it needs to forage safely. Another frequent problem is forcing it into an over-busy community when it would do better with more room or more deliberate tankmate choices.
Yellow Peacock Cichlid Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Yellow Peacock Cichlid.
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
125 Gallon Standard
150 Gallon High
Frequently Asked Questions About Yellow Peacock Cichlid
How big does Yellow Peacock Cichlid get?
Yellow Peacock Cichlid (Aulonocara baenschi) typically reaches a maximum adult size of approximately 13 cm. They have a fusiform body shape and a moderate growth rate.
What tank size does Yellow Peacock Cichlid need?
A minimum aquarium volume of 200 litres and a tank length of at least 120 cm are recommended for Yellow Peacock Cichlid. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Yellow Peacock Cichlid need?
Yellow Peacock Cichlid thrives in freshwater only conditions with a temperature range of 24–28°C, a pH between 7.8 and 8.6, and a general hardness of 10–25 dGH. A moderate water flow is preferred.
Is Yellow Peacock Cichlid peaceful or aggressive?
Yellow Peacock Cichlid is classified as semi-aggressive with an aggression score of 6 out of 10. They can work in community setups but may clash with certain tankmates.
Can Yellow Peacock Cichlid live alone?
Yes, Yellow Peacock Cichlid can be kept singly or in a group. They are flexible and adapt well to both setups.
Does Yellow Peacock Cichlid have any special tank requirements?
Yes. Yellow Peacock Cichlid benefits from sand (sifters) in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Useful setup supplies
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Guidarium Editorial Desk
Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.
- Last reviewed
- May 11, 2026
- Last updated
- May 11, 2026
- Issues or corrections?
- Contact the editorial team
Plants That Suit Yellow Peacock Cichlid
These plants pair well with Yellow Peacock Cichlid based on shared water preferences, layout fit, and how likely they are to hold up in the same aquarium.
Afzel's Anubias
Anubias afzelii
Anubias Barteri
Anubias barteri
Congo Anubias
Anubias heterophylla
Gillet's Anubias
Anubias gilletii
Java Fern
Leptochilus pteropus
Java Moss
Taxiphyllum barbieri
Fish Similar to Yellow Peacock Cichlid
Fort Maguire Peacock
Aulonocara hansbaenschi
A stunning Lake Malawi Peacock cichlid known for the male's metallic blue body and vibrant red/orange flush behind the gills. Like all Aulonocara, they are benthivores (sand-sifters) that hunt small invertebrates using enlarged sensory pores on their lower jaw. They require hard, alkaline water and a fine sand substrate to exhibit natural behaviors without damaging their gills.
Orange Peacock
Aulonocara stuartgranti maleri
A stunning Lake Malawi cichlid prized for its vibrant coloration. As an Aulonocara species, they possess sensory pores on their lower jaw to detect prey in the sand. They are relatively peaceful for African cichlids (compared to Mbuna) but require hard, alkaline water, a sandy substrate, and plenty of rockwork. They exhibit extreme sexual dimorphism.
Butterfly Peacock Cichlid
Aulonocara jacobfreibergi
One of the most colorful and slightly more aggressive Peacock cichlids from Lake Malawi. They are obligate sand-sifters that search for benthic invertebrates. They require hard, alkaline water and plenty of rocky caves. Like most Aulonocara, they exhibit extreme sexual dimorphism.
Maison Reef Peacock
Aulonocara stuartgranti "Maison Reef"
A stunning African Cichlid from Lake Malawi's intermediate zones (sand/rock transitions). They are 'benthophagous' sand-sifters, requiring fine sand to hunt for invertebrates without damaging their gills. Like most Peacocks, they are highly sexually dimorphic and require hard, alkaline water (Rift Lake parameters).
Peacock Cichlid (Aulonocara)
Aulonocara sp.
Endemic to Lake Malawi, Peacock Cichlids are highly sought after for the breathtaking colors of the males. They are benthivorous, using sensory pores on their jaws to hunt small invertebrates in the sand. While territorial, they are generally peaceful compared to their aggressive Mbuna cousins. They require hard, alkaline water and a sandy substrate to prevent gill damage while sifting.
Grant's Peacock Cichlid
Aulonocara stuartgranti
A stunning endemic cichlid from Lake Malawi known as a 'Peacock'. They feature specialized sensory pores on their lower jaw to hunt small invertebrates in the sand. Requires hard, alkaline water and a soft sandy substrate to prevent damage to their gills during natural sifting behavior.



