Can Auratus Cichlid (Mbuna) and Black Acara Live Together?

Not Recommended

Auratus Cichlid (Mbuna) and Black Acara 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

Auratus Cichlid (Mbuna)

Melanochromis auratus

Black Acara

Cichlasoma bimaculatum

🐠Family Group
Auratus Cichlid (Mbuna)
Cichlids - African
Black Acara
Cichlids - South American
Temperament
Auratus Cichlid (Mbuna)
Highly Aggressive (9/10)
Black Acara
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Auratus Cichlid (Mbuna)
23–28°C
Black Acara
22–28°C
pH Range
✗ No overlap
Auratus Cichlid (Mbuna)
7.6–8.6
Black Acara
6–7.5
Hardness (dGH)
✓ Compatible
Auratus Cichlid (Mbuna)
10–25
Black Acara
4–15
Water Type
✓ Compatible
Auratus Cichlid (Mbuna)
Freshwater Only
Black Acara
Freshwater Only
Flow Preference
✓ Compatible
Auratus Cichlid (Mbuna)
Moderate
Black Acara
Low
Min Tank Volume
Combined: 285 L
Auratus Cichlid (Mbuna)
200 L
Black Acara
115 L
Swimming Level
Shared: 2 zones
Auratus Cichlid (Mbuna)
MiddleBottom
Black Acara
MiddleBottom
🏷️Behavior Tags
Auratus Cichlid (Mbuna)
Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Hyperactive / Fast SwimmerDigger (Disturbs Substrate)Plant Destroyer
Black Acara
Territorial (Defends specific area)Digger (Disturbs Substrate)Fry Predator
Stocking calculator

Can your tank handle Auratus Cichlid (Mbuna) and Black Acara?

Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.

Auratus Cichlid (Mbuna)
Black Acara
Test both in my tank

Behaviour & Temperament

Auratus Cichlid (Mbuna) is a highly aggressive species (9/10), while Black Acara is moderately assertive (6/10). This modest difference means Auratus Cichlid (Mbuna) may occasionally assert dominance over Black Acara.

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

Additional behavioural considerations to keep in mind: Two territorial species may clash over territory, especially in smaller tanks.

Water Parameters

The safe temperature window for both species falls between 23°C and 28°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.

The pH requirements of Auratus Cichlid (Mbuna) (7.6–8.6) and Black Acara (6–7.5) 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.

Tank Setup

To house Auratus Cichlid (Mbuna) and Black Acara together, plan for an aquarium of at least 285 litres with a minimum length of 120 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

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), Established Algae (Otocinclus), Driftwood (Digestion/Hiding), 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.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Auratus Cichlid (Mbuna) and Black Acara.

Frequently Asked Questions

Can Auratus Cichlid (Mbuna) and Black Acara live together?

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

What size tank do Auratus Cichlid (Mbuna) and Black Acara need?

A minimum of 285 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 Auratus Cichlid (Mbuna) and Black Acara together?

Keep the aquarium between 23°C and 28°C. A target of around 25.5°C sits comfortably within both species' preferred ranges.

Are Auratus Cichlid (Mbuna) or Black Acara aggressive?

Auratus Cichlid (Mbuna) is highly aggressive (9/10) and Black Acara is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Auratus Cichlid (Mbuna) and Black Acara need?

Their pH requirements do not overlap. Auratus Cichlid (Mbuna) prefers 7.6–8.6, while Black Acara needs 6–7.5. This makes them incompatible in the same water chemistry.

How do I manage Auratus Cichlid (Mbuna)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Auratus Cichlid (Mbuna) 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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