Can African Jewel Cichlid and Golden Wonder Killifish Live Together?

🟡Possible with Caution

Keeping African Jewel Cichlid and Golden Wonder Killifish together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 132 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

African Jewel Cichlid

Hemichromis bimaculatus

Golden Wonder Killifish

Aplocheilus lineatus

🐠Family Group
African Jewel Cichlid
Cichlids - African
Golden Wonder Killifish
Killifish
Temperament
African Jewel Cichlid
Aggressive (8/10)
Golden Wonder Killifish
Semi-Aggressive (6/10)
Temperature
✓ Compatible
African Jewel Cichlid
22–28°C
Golden Wonder Killifish
22–28°C
pH Range
✓ Compatible
African Jewel Cichlid
6.5–7.5
Golden Wonder Killifish
6–7.5
Hardness (dGH)
✓ Compatible
African Jewel Cichlid
4–15
Golden Wonder Killifish
5–20
Water Type
✓ Compatible
African Jewel Cichlid
Freshwater Only
Golden Wonder Killifish
Brackish Tolerant
Flow Preference
✓ Compatible
African Jewel Cichlid
Moderate
Golden Wonder Killifish
Low
Min Tank Volume
Combined: 132 L
African Jewel Cichlid
110 L
Golden Wonder Killifish
75 L
Swimming Level
✓ Different zones
African Jewel Cichlid
MiddleBottom
Golden Wonder Killifish
Top
🏷️Behavior Tags
African Jewel Cichlid
Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Digger (Disturbs Substrate)Plant DestroyerFry Predator
Golden Wonder Killifish
Piscivore (Eats small/nano fish)Jumper (Lid Required)Shrimp EaterFry PredatorHyperactive / Fast Swimmer

Behaviour & Temperament

African Jewel Cichlid is a semi-aggressive species (8/10), while Golden Wonder Killifish is moderately assertive (6/10). This modest difference means African Jewel Cichlid may occasionally assert dominance over Golden Wonder Killifish.

In terms of spatial distribution, African Jewel Cichlid prefers the Middle (Open Water) and Bottom (Substrate) zones, whereas Golden Wonder Killifish occupies the Top (Surface) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Worth noting: Golden Wonder Killifish is a known jumper, so a tight-fitting lid is essential.

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 African Jewel Cichlid and Golden Wonder Killifish 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 22°C and 28°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 5–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house African Jewel Cichlid and Golden Wonder Killifish together, plan for an aquarium of at least 132 litres with a minimum length of 90 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

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

Specific environmental needs for this combination include: Sand (Sifters), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Plants - Floating. 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.

Frequently Asked Questions

Can African Jewel Cichlid and Golden Wonder Killifish live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 132 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do African Jewel Cichlid and Golden Wonder Killifish need?

A minimum of 132 litres (tank length at least 90 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 African Jewel Cichlid and Golden Wonder Killifish together?

Keep the aquarium between 22°C and 28°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are African Jewel Cichlid or Golden Wonder Killifish aggressive?

African Jewel Cichlid is semi-aggressive (8/10) and Golden Wonder Killifish is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do African Jewel Cichlid and Golden Wonder Killifish need?

Both species overlap in the 6.5–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage African Jewel Cichlid's territorial behaviour?

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