Can Peacock Cichlid (Aulonocara) and Serpae Tetra Live Together?

🔴Not Recommended

Peacock Cichlid (Aulonocara) and Serpae Tetra are not recommended as tank mates due to conflicting pH requirements. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Peacock Cichlid (Aulonocara)

Aulonocara sp.

Serpae Tetra

Hyphessobrycon eques

🐠Family Group
Peacock Cichlid (Aulonocara)
Cichlids - African
Serpae Tetra
Characins
Temperament
Peacock Cichlid (Aulonocara)
Semi-Aggressive (6/10)
Serpae Tetra
Semi-Aggressive (5/10)
Temperature
✓ Compatible
Peacock Cichlid (Aulonocara)
24–28°C
Serpae Tetra
22–28°C
pH Range
✗ No overlap
Peacock Cichlid (Aulonocara)
7.8–8.6
Serpae Tetra
5–7.5
Hardness (dGH)
✓ Compatible
Peacock Cichlid (Aulonocara)
10–25
Serpae Tetra
2–15
Water Type
✓ Compatible
Peacock Cichlid (Aulonocara)
Freshwater Only
Serpae Tetra
Freshwater Only
Flow Preference
✓ Compatible
Peacock Cichlid (Aulonocara)
Moderate
Serpae Tetra
Moderate
Min Tank Volume
Combined: 240 L
Peacock Cichlid (Aulonocara)
200 L
Serpae Tetra
75 L
Swimming Level
Shared: 2 zones
Peacock Cichlid (Aulonocara)
BottomMiddle
Serpae Tetra
MiddleBottom
🏷️Behavior Tags
Peacock Cichlid (Aulonocara)
Territorial (Defends specific area)Aggressive to same species/look-alikesDigger (Disturbs Substrate)
Serpae Tetra
Fin NipperHyperactive / Fast SwimmerFry PredatorAggressive to same species/look-alikes

Behaviour & Temperament

Peacock Cichlid (Aulonocara) is a moderately assertive species (6/10), while Serpae Tetra is moderately assertive (5/10). This modest difference means Peacock Cichlid (Aulonocara) may occasionally assert dominance over Serpae Tetra.

Peacock Cichlid (Aulonocara) and Serpae Tetra both frequent the Bottom (Substrate) and Middle (Open Water) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Water Parameters

The safe temperature window for both species falls between 24°C and 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.

The pH requirements of Peacock Cichlid (Aulonocara) (7.8–8.6) and Serpae Tetra (5–7.5) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–15 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Peacock Cichlid (Aulonocara) and Serpae Tetra together, plan for an aquarium of at least 240 litres with a minimum length of 120 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.

Specific environmental needs for this combination include: Sand (Sifters), Smooth Gravel (Sensitive Barbels), Plants - Densely covered. Meeting these requirements will help both species thrive.

Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.

Find the right tank equipment

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Frequently Asked Questions

Can Peacock Cichlid (Aulonocara) and Serpae Tetra live together?

No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.

What size tank do Peacock Cichlid (Aulonocara) and Serpae Tetra need?

A minimum of 240 litres (tank length at least 120 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.

What water temperature is best for Peacock Cichlid (Aulonocara) and Serpae Tetra together?

Keep the aquarium between 24°C and 28°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.

Are Peacock Cichlid (Aulonocara) or Serpae Tetra aggressive?

Peacock Cichlid (Aulonocara) is moderately assertive (6/10) and Serpae Tetra is moderately assertive (5/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Peacock Cichlid (Aulonocara) and Serpae Tetra need?

Their pH requirements do not overlap. Peacock Cichlid (Aulonocara) prefers 7.8–8.6, while Serpae Tetra needs 5–7.5. This makes them incompatible in the same water chemistry.

Will Serpae Tetra nip Peacock Cichlid (Aulonocara)'s fins?

Serpae Tetra is a known fin nipper. If Peacock Cichlid (Aulonocara) has long or flowing fins, there is a real risk of fin damage. Keeping Serpae Tetra in a larger group can help redirect nipping behaviour toward conspecifics.

How do I manage Peacock Cichlid (Aulonocara)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Peacock Cichlid (Aulonocara) space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.


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