Can Afra Cichlid and Black Acara Live Together?

Not Recommended

Afra Cichlid 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

Afra Cichlid

Cynotilapia afra

Black Acara

Cichlasoma bimaculatum

🐠Family Group
Afra Cichlid
Cichlids - African
Black Acara
Cichlids - South American
Temperament
Afra Cichlid
Aggressive (8/10)
Black Acara
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Afra Cichlid
24–28°C
Black Acara
22–28°C
pH Range
✗ No overlap
Afra Cichlid
7.6–8.6
Black Acara
6–7.5
Hardness (dGH)
✓ Compatible
Afra Cichlid
10–25
Black Acara
4–15
Water Type
✓ Compatible
Afra Cichlid
Freshwater Only
Black Acara
Freshwater Only
Flow Preference
✓ Compatible
Afra Cichlid
Moderate
Black Acara
Low
Min Tank Volume
Combined: 285 L
Afra Cichlid
200 L
Black Acara
115 L
Swimming Level
Shared: 2 zones
Afra Cichlid
MiddleBottom
Black Acara
MiddleBottom
🏷️Behavior Tags
Afra Cichlid
Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Digger (Disturbs Substrate)Plant DestroyerFry PredatorHyperactive / Fast Swimmer
Black Acara
Territorial (Defends specific area)Digger (Disturbs Substrate)Fry Predator
Stocking calculator

Can your tank handle Afra Cichlid 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.

Afra Cichlid
Black Acara
Test both in my tank

Behaviour & Temperament

Afra Cichlid is a semi-aggressive species (8/10), while Black Acara is moderately assertive (6/10). This modest difference means Afra Cichlid may occasionally assert dominance over Black Acara.

Afra Cichlid 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 24°C and 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.

The pH requirements of Afra Cichlid (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 Afra Cichlid 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 Afra Cichlid and Black Acara.

Frequently Asked Questions

Can Afra Cichlid 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 Afra Cichlid 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 Afra Cichlid and Black Acara 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 Afra Cichlid or Black Acara aggressive?

Afra Cichlid is semi-aggressive (8/10) and Black Acara is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Afra Cichlid and Black Acara need?

Their pH requirements do not overlap. Afra Cichlid 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 Afra Cichlid's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Afra Cichlid 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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