Can Dourada and Horei Cichlid Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 4, 2026
Not Recommended

Dourada and Horei Cichlid 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

Dourada

Brachyplatystoma rousseauxii

Horei Cichlid

Ctenochromis horei

🐠Family Group
Dourada
Catfish
Horei Cichlid
Cichlids - African
Temperament
Dourada
Semi-Aggressive (6/10)
Horei Cichlid
Aggressive (8/10)
Temperature
✓ Compatible
Dourada
24–29°C
Horei Cichlid
24–28°C
pH Range
✗ No overlap
Dourada
6–7.5
Horei Cichlid
7.8–9
Hardness (dGH)
✓ Compatible
Dourada
2–15
Horei Cichlid
10–25
Water Type
✓ Compatible
Dourada
Freshwater Only
Horei Cichlid
Freshwater Only
Flow Preference
✓ Compatible
Dourada
High
Horei Cichlid
Moderate
Min Tank Volume
Combined: 15000 L
Dourada
15000 L
Horei Cichlid
208 L
Swimming Level
Shared: 2 zones
Dourada
MiddleBottom
Horei Cichlid
MiddleBottom
🏷️Behavior Tags
Dourada
Piscivore (Eats small/nano fish)Hyperactive / Fast SwimmerJumper (Lid Required)Plant Destroyer
Horei Cichlid
Territorial (Defends specific area)Generally AggressiveAggressive to same species/look-alikesPiscivore (Eats small/nano fish)Digger (Disturbs Substrate)Fry Predator
Stocking calculator

Can your tank handle Dourada and Horei Cichlid?

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.

Dourada
Horei Cichlid
Test both in my tank

Behaviour & Temperament

Dourada is a moderately assertive species (6/10), while Horei Cichlid is semi-aggressive (8/10). This modest difference means Horei Cichlid may occasionally assert dominance over Dourada.

Dourada and Horei Cichlid 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.

Worth noting: Dourada 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 Dourada (6–7.5) and Horei Cichlid (7.8–9) 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 Dourada and Horei Cichlid together, plan for an aquarium of at least 15000 litres with a minimum length of 600 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), Smooth Gravel (Sensitive Barbels). 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.

Why This Pairing Usually Fails in Practice

Dourada and Horei Cichlid 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.

Frequently Asked Questions

Can Dourada and Horei Cichlid live together?

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

What size tank do Dourada and Horei Cichlid need?

A minimum of 15000 litres (tank length at least 600 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 Dourada and Horei Cichlid 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 Dourada or Horei Cichlid aggressive?

Dourada is moderately assertive (6/10) and Horei Cichlid is semi-aggressive (8/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Dourada and Horei Cichlid need?

Their pH requirements do not overlap. Dourada prefers 6–7.5, while Horei Cichlid needs 7.8–9. This makes them incompatible in the same water chemistry.

How do I manage Horei Cichlid's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Horei Cichlid 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.

Editorial Review

Guidarium Editorial Desk

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

Last reviewed
May 4, 2026
Last updated
May 4, 2026
Issues or corrections?
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