Can Black Diamond Cichlid and Butterfly Peacock Cichlid Live Together?

Possible with Caution

Keeping Black Diamond Cichlid and Butterfly Peacock Cichlid together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 280 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Black Diamond Cichlid

Paratilapia polleni

Butterfly Peacock Cichlid

Aulonocara jacobfreibergi

🐟Family Group
Black Diamond Cichlid
Cichlids - African
Butterfly Peacock Cichlid
Cichlids - African
Temperament
Black Diamond Cichlid
Aggressive (8/10)
Butterfly Peacock Cichlid
Semi-Aggressive (6/10)
Temperature
βœ“ Compatible
Black Diamond Cichlid
24–28Β°C
Butterfly Peacock Cichlid
24–28Β°C
pH Range
βœ“ Compatible
Black Diamond Cichlid
6.5–8
Butterfly Peacock Cichlid
7.8–8.6
Hardness (dGH)
βœ“ Compatible
Black Diamond Cichlid
5–20
Butterfly Peacock Cichlid
10–25
Water Type
βœ“ Compatible
Black Diamond Cichlid
Freshwater Only
Butterfly Peacock Cichlid
Freshwater Only
Flow Preference
βœ“ Compatible
Black Diamond Cichlid
Moderate
Butterfly Peacock Cichlid
Moderate
Min Tank Volume
Combined: 280 L
Black Diamond Cichlid
280 L
Butterfly Peacock Cichlid
208 L
Swimming Level
Shared: 2 zones
Black Diamond Cichlid
MiddleBottom
Butterfly Peacock Cichlid
MiddleBottom
🏷️Behavior Tags
Black Diamond Cichlid
Piscivore (Eats small/nano fish)Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Digger (Disturbs Substrate)Hyperactive / Fast Swimmer
Butterfly Peacock Cichlid
Territorial (Defends specific area)Aggressive to same species/look-alikesDigger (Disturbs Substrate)Fry PredatorHyperactive / Fast Swimmer
Stocking calculator

Can your tank handle Black Diamond Cichlid and Butterfly Peacock Cichlid?

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.

Black Diamond Cichlid
Butterfly Peacock Cichlid
Test both in my tank

Behaviour & Temperament

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

Black Diamond Cichlid and Butterfly Peacock Cichlid 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.

To improve the chances of a peaceful coexistence in this community tank: Provide a significantly larger tank (at least 50% more volume than the minimum) to allow both Black Diamond Cichlid and Butterfly Peacock Cichlid to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations.

Water Parameters

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

Both fish can tolerate a pH between 7.8 and 8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 10–20 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Black Diamond Cichlid and Butterfly Peacock Cichlid together, plan for an aquarium of at least 280 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.

Because this pairing requires extra vigilance, include plenty of hiding spots β€” caves, driftwood, and dense plant clusters β€” so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Sand (Sifters), 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 Black Diamond Cichlid and Butterfly Peacock Cichlid.

Show 1 more tank size

Frequently Asked Questions

Can Black Diamond Cichlid and Butterfly Peacock Cichlid live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 280 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Black Diamond Cichlid and Butterfly Peacock Cichlid need?

A minimum of 280 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 Black Diamond Cichlid and Butterfly Peacock Cichlid together?

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

Are Black Diamond Cichlid or Butterfly Peacock Cichlid aggressive?

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

What pH do Black Diamond Cichlid and Butterfly Peacock Cichlid need?

Both species overlap in the 7.8–8 pH range. Consistency is key β€” avoid sudden swings, and test regularly to stay within this window.

How do I manage Black Diamond Cichlid's territorial behaviour?

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


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