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

🔴Not Recommended

Duboisi Cichlid (Tropheus) and Siamese Algae Eater 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

Duboisi Cichlid (Tropheus)

Tropheus duboisi

Siamese Algae Eater

Crossocheilus oblongus

🐠Family Group
Duboisi Cichlid (Tropheus)
Cichlids - African
Siamese Algae Eater
Cyprinids
Temperament
Duboisi Cichlid (Tropheus)
Aggressive (8/10)
Siamese Algae Eater
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Duboisi Cichlid (Tropheus)
24–28°C
Siamese Algae Eater
22–28°C
pH Range
✗ No overlap
Duboisi Cichlid (Tropheus)
8–9
Siamese Algae Eater
6–7.5
Hardness (dGH)
✓ Compatible
Duboisi Cichlid (Tropheus)
10–25
Siamese Algae Eater
5–15
Water Type
✓ Compatible
Duboisi Cichlid (Tropheus)
Freshwater Only
Siamese Algae Eater
Freshwater Only
Flow Preference
✓ Compatible
Duboisi Cichlid (Tropheus)
Moderate
Siamese Algae Eater
Moderate
Min Tank Volume
Combined: 336 L
Duboisi Cichlid (Tropheus)
280 L
Siamese Algae Eater
110 L
Swimming Level
Shared: 2 zones
Duboisi Cichlid (Tropheus)
MiddleBottom
Siamese Algae Eater
BottomMiddle
🏷️Behavior Tags
Duboisi Cichlid (Tropheus)
Aggressive to same species/look-alikesTerritorial (Defends specific area)Hyperactive / Fast SwimmerPlant DestroyerDigger (Disturbs Substrate)Aggressive Eater (Starves shy fish)
Siamese Algae Eater
Hyperactive / Fast SwimmerJumper (Lid Required)Aggressive Eater (Starves shy fish)Territorial (Defends specific area)

Behaviour & Temperament

Duboisi Cichlid (Tropheus) is a semi-aggressive species (8/10), while Siamese Algae Eater is generally mild-mannered (3/10). This notable difference means Duboisi Cichlid (Tropheus) may occasionally assert dominance over Siamese Algae Eater.

Duboisi Cichlid (Tropheus) and Siamese Algae Eater 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.

Worth noting: Siamese Algae Eater is a known jumper, so a tight-fitting lid is essential.

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 Duboisi Cichlid (Tropheus) (8–9) and Siamese Algae Eater (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. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Duboisi Cichlid (Tropheus) and Siamese Algae Eater 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.

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), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Plants - lighly covered. Meeting these requirements will help both species thrive.

Note a potential conflict in setup requirements: Duboisi Cichlid (Tropheus) is a plant destroyer, which conflicts with Siamese Algae Eater's requirement for live plants. Compromise where possible or prioritise the more critical need.

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

Find the right tank equipment

Browse tanks, décor, and equipment suited for this setup.

Frequently Asked Questions

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

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

What size tank do Duboisi Cichlid (Tropheus) and Siamese Algae Eater 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 Duboisi Cichlid (Tropheus) and Siamese Algae Eater 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 Duboisi Cichlid (Tropheus) or Siamese Algae Eater aggressive?

Duboisi Cichlid (Tropheus) is semi-aggressive (8/10) and Siamese Algae Eater is generally mild-mannered (3/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

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

Their pH requirements do not overlap. Duboisi Cichlid (Tropheus) prefers 8–9, while Siamese Algae Eater needs 6–7.5. This makes them incompatible in the same water chemistry.

How do I manage Duboisi Cichlid (Tropheus)'s territorial behaviour?

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