Can Fairy Cichlid (Brichardi) and Royal Pleco (L190) Live Together?

🔴Not Recommended

Fairy Cichlid (Brichardi) and Royal Pleco (L190) 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

Fairy Cichlid (Brichardi)

Neolamprologus brichardi

Royal Pleco (L190)

Panaque nigrolineatus

🐠Family Group
Fairy Cichlid (Brichardi)
Cichlids - African
Royal Pleco (L190)
Catfish
Temperament
Fairy Cichlid (Brichardi)
Aggressive (8/10)
Royal Pleco (L190)
Semi-Aggressive (5/10)
Temperature
✓ Compatible
Fairy Cichlid (Brichardi)
23–27°C
Royal Pleco (L190)
22–28°C
pH Range
✗ No overlap
Fairy Cichlid (Brichardi)
8–9
Royal Pleco (L190)
6.5–7.5
Hardness (dGH)
✓ Compatible
Fairy Cichlid (Brichardi)
10–25
Royal Pleco (L190)
5–15
Water Type
✓ Compatible
Fairy Cichlid (Brichardi)
Freshwater Only
Royal Pleco (L190)
Freshwater Only
Flow Preference
✓ Compatible
Fairy Cichlid (Brichardi)
Moderate
Royal Pleco (L190)
High
Min Tank Volume
Combined: 540 L
Fairy Cichlid (Brichardi)
110 L
Royal Pleco (L190)
450 L
Swimming Level
Shared: 1 zone
Fairy Cichlid (Brichardi)
MiddleBottom
Royal Pleco (L190)
Bottom
🏷️Behavior Tags
Fairy Cichlid (Brichardi)
Territorial (Defends specific area)Digger (Disturbs Substrate)Fry PredatorGenerally AggressiveAggressive to same species/look-alikes
Royal Pleco (L190)
Territorial (Defends specific area)NocturnalAggressive to same species/look-alikesPlant Destroyer

Behaviour & Temperament

Fairy Cichlid (Brichardi) is a semi-aggressive species (8/10), while Royal Pleco (L190) is moderately assertive (5/10). This modest difference means Fairy Cichlid (Brichardi) may occasionally assert dominance over Royal Pleco (L190).

Fairy Cichlid (Brichardi) and Royal Pleco (L190) 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.

Worth noting: Royal Pleco (L190) 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 27°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.

The pH requirements of Fairy Cichlid (Brichardi) (8–9) and Royal Pleco (L190) (6.5–7.5) 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. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Fairy Cichlid (Brichardi) and Royal Pleco (L190) together, plan for an aquarium of at least 540 litres with a minimum length of 150 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), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding). 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 Fairy Cichlid (Brichardi) and Royal Pleco (L190) live together?

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

What size tank do Fairy Cichlid (Brichardi) and Royal Pleco (L190) need?

A minimum of 540 litres (tank length at least 150 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 Fairy Cichlid (Brichardi) and Royal Pleco (L190) together?

Keep the aquarium between 23°C and 27°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are Fairy Cichlid (Brichardi) or Royal Pleco (L190) aggressive?

Fairy Cichlid (Brichardi) is semi-aggressive (8/10) and Royal Pleco (L190) is moderately assertive (5/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Fairy Cichlid (Brichardi) and Royal Pleco (L190) need?

Their pH requirements do not overlap. Fairy Cichlid (Brichardi) prefers 8–9, while Royal Pleco (L190) needs 6.5–7.5. This makes them incompatible in the same water chemistry.

How do I manage Fairy Cichlid (Brichardi)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Fairy Cichlid (Brichardi) 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 Royal Pleco (L190) being nocturnal affect compatibility?

Royal Pleco (L190) 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 Royal Pleco (L190) during evening hours.


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