Can Duboisi Cichlid (Tropheus) and Silver Arowana Live Together?
Duboisi Cichlid (Tropheus) and Silver Arowana 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
Duboisi Cichlid (Tropheus) is a semi-aggressive species (8/10), while Silver Arowana is moderately assertive (6/10). This modest difference means Duboisi Cichlid (Tropheus) may occasionally assert dominance over Silver Arowana.
In terms of spatial distribution, Duboisi Cichlid (Tropheus) prefers the Middle (Open Water) and Bottom (Substrate) zones, whereas Silver Arowana 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.
Additional behavioural considerations to keep in mind: Two territorial species may clash over territory, especially in smaller tanks.
Worth noting: Silver Arowana 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 Silver Arowana (6–7.5) do not overlap, making it impossible to satisfy both species simultaneously.
For general hardness, the shared comfort zone is 10–12 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 Silver Arowana together, plan for an aquarium of at least 1200 litres with a minimum length of 240 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). 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.
Find the right tank equipment
Browse tanks, décor, and equipment suited for this setup.
Frequently Asked Questions
Can Duboisi Cichlid (Tropheus) and Silver Arowana 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 Silver Arowana need?▾
A minimum of 1200 litres (tank length at least 240 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 Silver Arowana 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 Silver Arowana aggressive?▾
Duboisi Cichlid (Tropheus) is semi-aggressive (8/10) and Silver Arowana is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Duboisi Cichlid (Tropheus) and Silver Arowana need?▾
Their pH requirements do not overlap. Duboisi Cichlid (Tropheus) prefers 8–9, while Silver Arowana 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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