Can Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) Live Together?

🟡Possible with Caution

Keeping Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 336 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Chinese Algae Eater (CAE)

Gyrinocheilus aymonieri

Duboisi Cichlid (Tropheus)

Tropheus duboisi

🐠Family Group
Chinese Algae Eater (CAE)
Other
Duboisi Cichlid (Tropheus)
Cichlids - African
Temperament
Chinese Algae Eater (CAE)
Aggressive (8/10)
Duboisi Cichlid (Tropheus)
Aggressive (8/10)
Temperature
✓ Compatible
Chinese Algae Eater (CAE)
22–28°C
Duboisi Cichlid (Tropheus)
24–28°C
pH Range
✓ Compatible
Chinese Algae Eater (CAE)
6–8
Duboisi Cichlid (Tropheus)
8–9
Hardness (dGH)
✓ Compatible
Chinese Algae Eater (CAE)
5–15
Duboisi Cichlid (Tropheus)
10–25
Water Type
✓ Compatible
Chinese Algae Eater (CAE)
Freshwater Only
Duboisi Cichlid (Tropheus)
Freshwater Only
Flow Preference
✓ Compatible
Chinese Algae Eater (CAE)
High
Duboisi Cichlid (Tropheus)
Moderate
Min Tank Volume
Combined: 336 L
Chinese Algae Eater (CAE)
200 L
Duboisi Cichlid (Tropheus)
280 L
Swimming Level
Shared: 1 zone
Chinese Algae Eater (CAE)
Bottom
Duboisi Cichlid (Tropheus)
MiddleBottom
🏷️Behavior Tags
Chinese Algae Eater (CAE)
Slime Coat Eater (Attacks Flat Fish)Generally AggressiveTerritorial (Defends specific area)Aggressive to same species/look-alikesHyperactive / Fast Swimmer
Duboisi Cichlid (Tropheus)
Aggressive to same species/look-alikesTerritorial (Defends specific area)Hyperactive / Fast SwimmerPlant DestroyerDigger (Disturbs Substrate)Aggressive Eater (Starves shy fish)

Behaviour & Temperament

Both Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) are semi-aggressive species with an aggression score of 8/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.

Both Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) are highly aggressive, increasing the risk of violent confrontations.

Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) both frequent the 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 Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) 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 24°C and 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.

Both fish can tolerate a pH between 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 10–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) together, plan for an aquarium of at least 336 litres with a minimum length of 120 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: Smooth Gravel (Sensitive Barbels), Sand (Sifters), Established Algae (Otocinclus). Meeting these requirements will help both species thrive.

Both species do well with high (river/stream) water movement, so a standard filtration setup rated for the tank volume should suffice.

Frequently Asked Questions

Can Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 336 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) need?

A minimum of 336 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 Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) 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 Chinese Algae Eater (CAE) or Duboisi Cichlid (Tropheus) aggressive?

Chinese Algae Eater (CAE) is semi-aggressive (8/10) and Duboisi Cichlid (Tropheus) is semi-aggressive (8/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Chinese Algae Eater (CAE) and Duboisi Cichlid (Tropheus) need?

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

How do I manage Chinese Algae Eater (CAE)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Chinese Algae Eater (CAE) 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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