Can Peacock Cichlid (Aulonocara) and Tinfoil Barb Live Together?

🔴Not Recommended

Peacock Cichlid (Aulonocara) and Tinfoil Barb 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.

Tinfoil Barb

Barbonymus schwanenfeldii

🐠Family Group
Peacock Cichlid (Aulonocara)
Cichlids - African
Tinfoil Barb
Cyprinids
Temperament
Peacock Cichlid (Aulonocara)
Semi-Aggressive (6/10)
Tinfoil Barb
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Peacock Cichlid (Aulonocara)
24–28°C
Tinfoil Barb
22–28°C
pH Range
✗ No overlap
Peacock Cichlid (Aulonocara)
7.8–8.6
Tinfoil Barb
6.5–7.5
Hardness (dGH)
✓ Compatible
Peacock Cichlid (Aulonocara)
10–25
Tinfoil Barb
2–15
Water Type
✓ Compatible
Peacock Cichlid (Aulonocara)
Freshwater Only
Tinfoil Barb
Freshwater Only
Flow Preference
✓ Compatible
Peacock Cichlid (Aulonocara)
Moderate
Tinfoil Barb
High
Min Tank Volume
Combined: 816 L
Peacock Cichlid (Aulonocara)
200 L
Tinfoil Barb
680 L
Swimming Level
Shared: 2 zones
Peacock Cichlid (Aulonocara)
BottomMiddle
Tinfoil Barb
MiddleBottom
🏷️Behavior Tags
Peacock Cichlid (Aulonocara)
Territorial (Defends specific area)Aggressive to same species/look-alikesDigger (Disturbs Substrate)
Tinfoil Barb
Hyperactive / Fast SwimmerPiscivore (Eats small/nano fish)Plant DestroyerJumper (Lid Required)Shrimp EaterAggressive Eater (Starves shy fish)

Behaviour & Temperament

Peacock Cichlid (Aulonocara) is a moderately assertive species (6/10), while Tinfoil Barb is generally mild-mannered (3/10). This modest difference means Peacock Cichlid (Aulonocara) may occasionally assert dominance over Tinfoil Barb.

Peacock Cichlid (Aulonocara) and Tinfoil Barb 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.

Worth noting: Tinfoil Barb is a known jumper, so a tight-fitting lid is essential.

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 Tinfoil Barb (6.5–7.5) 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 Tinfoil Barb together, plan for an aquarium of at least 816 litres with a minimum length of 180 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). 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

Browse tanks, décor, and equipment suited for this setup.

Frequently Asked Questions

Can Peacock Cichlid (Aulonocara) and Tinfoil Barb 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 Tinfoil Barb need?

A minimum of 816 litres (tank length at least 180 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 Tinfoil Barb 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 Tinfoil Barb aggressive?

Peacock Cichlid (Aulonocara) is moderately assertive (6/10) and Tinfoil Barb is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Peacock Cichlid (Aulonocara) and Tinfoil Barb need?

Their pH requirements do not overlap. Peacock Cichlid (Aulonocara) prefers 7.8–8.6, while Tinfoil Barb needs 6.5–7.5. This makes them incompatible in the same water chemistry.

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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