Can Duboisi Cichlid (Tropheus) and Freshwater Sole Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Duboisi Cichlid (Tropheus) and Freshwater Sole 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

Freshwater Sole

Brachirus selheimi

🐠Family Group
Duboisi Cichlid (Tropheus)
Cichlids - African
Freshwater Sole
Oddballs
Temperament
Duboisi Cichlid (Tropheus)
Aggressive (8/10)
Freshwater Sole
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Duboisi Cichlid (Tropheus)
24–28°C
Freshwater Sole
22–28°C
pH Range
✗ No overlap
Duboisi Cichlid (Tropheus)
8–9
Freshwater Sole
6.5–7.8
Hardness (dGH)
✓ Compatible
Duboisi Cichlid (Tropheus)
10–25
Freshwater Sole
5–15
Water Type
✓ Compatible
Duboisi Cichlid (Tropheus)
Freshwater Only
Freshwater Sole
Brackish Tolerant
Flow Preference
✓ Compatible
Duboisi Cichlid (Tropheus)
Moderate
Freshwater Sole
Low
Min Tank Volume
Combined: 280 L
Duboisi Cichlid (Tropheus)
280 L
Freshwater Sole
110 L
Swimming Level
Shared: 1 zone
Duboisi Cichlid (Tropheus)
MiddleBottom
Freshwater Sole
Bottom
🏷️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)
Freshwater Sole
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorDigger (Disturbs Substrate)Shy / Slow Moving (Easily Stressed)Nocturnal
Stocking calculator

Can your tank handle Duboisi Cichlid (Tropheus) and Freshwater Sole?

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.

Duboisi Cichlid (Tropheus)
Freshwater Sole
Test both in my tank

Behaviour & Temperament

Duboisi Cichlid (Tropheus) is a semi-aggressive species (8/10), while Freshwater Sole is generally mild-mannered (4/10). This notable difference means Duboisi Cichlid (Tropheus) may occasionally assert dominance over Freshwater Sole.

Duboisi Cichlid (Tropheus) and Freshwater Sole 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: Hyperactive swimmers can stress shy, slow-moving species through constant motion. Aggressive eaters may outcompete shy fish for food, leading to malnutrition.

Worth noting: Freshwater Sole 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 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 Freshwater Sole (6.5–7.8) 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 Duboisi Cichlid (Tropheus) and Freshwater Sole together, plan for an aquarium of at least 280 litres with a minimum length of 120 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: 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.

Why This Pairing Usually Fails in Practice

Duboisi Cichlid (Tropheus) and Freshwater Sole are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Duboisi Cichlid (Tropheus) and Freshwater Sole.

Show 1 more tank size

Diet & Feeding

Feeding time deserves special attention with this pairing. Duboisi Cichlid (Tropheus) is an aggressive eater that may prevent Freshwater Sole from getting enough food.

Because Duboisi Cichlid (Tropheus) is a fast, competitive feeder, consider using sinking pellets or feeding at opposite ends of the setup to ensure Freshwater Sole receives an adequate share.

Frequently Asked Questions

Can Duboisi Cichlid (Tropheus) and Freshwater Sole 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 Freshwater Sole need?

A minimum of 280 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 Freshwater Sole 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 Freshwater Sole aggressive?

Duboisi Cichlid (Tropheus) is semi-aggressive (8/10) and Freshwater Sole is generally mild-mannered (4/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Duboisi Cichlid (Tropheus) and Freshwater Sole need?

Their pH requirements do not overlap. Duboisi Cichlid (Tropheus) prefers 8–9, while Freshwater Sole needs 6.5–7.8. 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.

Does Freshwater Sole being nocturnal affect compatibility?

Freshwater Sole 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 Freshwater Sole during evening hours.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
May 6, 2026
Last updated
May 6, 2026
Issues or corrections?
Contact the editorial team

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