Can Adonis Pleco and Auratus Cichlid (Mbuna) Live Together?
Adonis Pleco and Auratus Cichlid (Mbuna) 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
Can your tank handle Adonis Pleco and Auratus Cichlid (Mbuna)?
Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.
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Behaviour & Temperament
Adonis Pleco is a semi-aggressive species (8/10), while Auratus Cichlid (Mbuna) is highly aggressive (9/10). This modest difference means Auratus Cichlid (Mbuna) may occasionally assert dominance over Adonis Pleco.
Both Adonis Pleco and Auratus Cichlid (Mbuna) are highly aggressive, increasing the risk of violent confrontations.
Adonis Pleco and Auratus Cichlid (Mbuna) 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. Two aggressive species housed together increases risk of fighting.
Worth noting: Adonis Pleco is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.
Water Parameters
The safe temperature window for both species falls between 23°C and 28°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.
The pH requirements of Adonis Pleco (6–7.5) and Auratus Cichlid (Mbuna) (7.6–8.6) 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.
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Tank Setup
To house Adonis Pleco and Auratus Cichlid (Mbuna) together, plan for an aquarium of at least 1500 litres with a minimum length of 300 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.
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), Smooth Gravel (Sensitive Barbels), 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.
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Frequently Asked Questions
Can Adonis Pleco and Auratus Cichlid (Mbuna) live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Adonis Pleco and Auratus Cichlid (Mbuna) need?
A minimum of 1500 litres (tank length at least 300 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 Adonis Pleco and Auratus Cichlid (Mbuna) together?
Keep the aquarium between 23°C and 28°C. A target of around 25.5°C sits comfortably within both species' preferred ranges.
Are Adonis Pleco or Auratus Cichlid (Mbuna) aggressive?
Adonis Pleco is semi-aggressive (8/10) and Auratus Cichlid (Mbuna) is highly aggressive (9/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Adonis Pleco and Auratus Cichlid (Mbuna) need?
Their pH requirements do not overlap. Adonis Pleco prefers 6–7.5, while Auratus Cichlid (Mbuna) needs 7.6–8.6. This makes them incompatible in the same water chemistry.
How do I manage Adonis Pleco's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Adonis Pleco 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.
Does Adonis Pleco being nocturnal affect compatibility?
Adonis Pleco is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Adonis Pleco during evening hours.
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