Can Bucktooth Tetra (Exodon) and Duboisi Cichlid (Tropheus) Live Together?
Bucktooth Tetra (Exodon) and Duboisi Cichlid (Tropheus) 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
Behaviour & Temperament
Bucktooth Tetra (Exodon) is a highly aggressive species (9/10), while Duboisi Cichlid (Tropheus) is semi-aggressive (8/10). This modest difference means Bucktooth Tetra (Exodon) may occasionally assert dominance over Duboisi Cichlid (Tropheus).
Both Bucktooth Tetra (Exodon) and Duboisi Cichlid (Tropheus) are highly aggressive, increasing the risk of violent confrontations.
Bucktooth Tetra (Exodon) and Duboisi Cichlid (Tropheus) both frequent the Middle (Open Water) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
Worth noting: Bucktooth Tetra (Exodon) 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 Bucktooth Tetra (Exodon) (5.5–7.5) and Duboisi Cichlid (Tropheus) (8–9) 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 Bucktooth Tetra (Exodon) 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.
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: Driftwood (Digestion/Hiding), Sand (Sifters), Established Algae (Otocinclus), 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.
Frequently Asked Questions
Can Bucktooth Tetra (Exodon) and Duboisi Cichlid (Tropheus) live together?▾
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Bucktooth Tetra (Exodon) 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 Bucktooth Tetra (Exodon) 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 Bucktooth Tetra (Exodon) or Duboisi Cichlid (Tropheus) aggressive?▾
Bucktooth Tetra (Exodon) is highly aggressive (9/10) and Duboisi Cichlid (Tropheus) is semi-aggressive (8/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Bucktooth Tetra (Exodon) and Duboisi Cichlid (Tropheus) need?▾
Their pH requirements do not overlap. Bucktooth Tetra (Exodon) prefers 5.5–7.5, while Duboisi Cichlid (Tropheus) needs 8–9. This makes them incompatible in the same water chemistry.
Will Bucktooth Tetra (Exodon) nip Duboisi Cichlid (Tropheus)'s fins?▾
Bucktooth Tetra (Exodon) is a known fin nipper. If Duboisi Cichlid (Tropheus) has long or flowing fins, there is a real risk of fin damage. Keeping Bucktooth Tetra (Exodon) in a larger group can help redirect nipping behaviour toward conspecifics.
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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