Can Fairy Cichlid (Brichardi) and Reedfish (Ropefish) Live Together?

Reviewed by Guidarium Editorial DeskUpdated April 28, 2026
Not Recommended

Fairy Cichlid (Brichardi) and Reedfish (Ropefish) 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

Reedfish (Ropefish)

Erpetoichthys calabaricus

🐠Family Group
Fairy Cichlid (Brichardi)
Cichlids - African
Reedfish (Ropefish)
Oddballs
Temperament
Fairy Cichlid (Brichardi)
Aggressive (8/10)
Reedfish (Ropefish)
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Fairy Cichlid (Brichardi)
23–27°C
Reedfish (Ropefish)
22–28°C
pH Range
✗ No overlap
Fairy Cichlid (Brichardi)
8–9
Reedfish (Ropefish)
6–7.5
Hardness (dGH)
✓ Compatible
Fairy Cichlid (Brichardi)
10–25
Reedfish (Ropefish)
5–20
Water Type
✓ Compatible
Fairy Cichlid (Brichardi)
Freshwater Only
Reedfish (Ropefish)
Freshwater Only
Flow Preference
✓ Compatible
Fairy Cichlid (Brichardi)
Moderate
Reedfish (Ropefish)
Low
Min Tank Volume
Combined: 180 L
Fairy Cichlid (Brichardi)
110 L
Reedfish (Ropefish)
180 L
Swimming Level
Shared: 2 zones
Fairy Cichlid (Brichardi)
MiddleBottom
Reedfish (Ropefish)
BottomMiddle
🏷️Behavior Tags
Fairy Cichlid (Brichardi)
Territorial (Defends specific area)Digger (Disturbs Substrate)Fry PredatorGenerally AggressiveAggressive to same species/look-alikes
Reedfish (Ropefish)
Piscivore (Eats small/nano fish)Shrimp EaterJumper (Lid Required)NocturnalHyperactive / Fast SwimmerSlime Coat Eater (Attacks Flat Fish)
Stocking calculator

Can your tank handle Fairy Cichlid (Brichardi) and Reedfish (Ropefish)?

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.

Fairy Cichlid (Brichardi)
Reedfish (Ropefish)
Test both in my tank

Behaviour & Temperament

Fairy Cichlid (Brichardi) is a semi-aggressive species (8/10), while Reedfish (Ropefish) is generally mild-mannered (3/10). This notable difference means Fairy Cichlid (Brichardi) may occasionally assert dominance over Reedfish (Ropefish).

Fairy Cichlid (Brichardi) and Reedfish (Ropefish) 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: Reedfish (Ropefish) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Reedfish (Ropefish) is a known jumper, so a tight-fitting lid is essential.

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 Reedfish (Ropefish) (6–7.5) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–20 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Fairy Cichlid (Brichardi) and Reedfish (Ropefish) together, plan for an aquarium of at least 180 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), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Plants - Densely covered. 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

Fairy Cichlid (Brichardi) and Reedfish (Ropefish) 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 Fairy Cichlid (Brichardi) and Reedfish (Ropefish).

Show 5 more tank sizes

Frequently Asked Questions

Can Fairy Cichlid (Brichardi) and Reedfish (Ropefish) 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 Reedfish (Ropefish) need?

A minimum of 180 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 Fairy Cichlid (Brichardi) and Reedfish (Ropefish) 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 Reedfish (Ropefish) aggressive?

Fairy Cichlid (Brichardi) is semi-aggressive (8/10) and Reedfish (Ropefish) is generally mild-mannered (3/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Fairy Cichlid (Brichardi) and Reedfish (Ropefish) need?

Their pH requirements do not overlap. Fairy Cichlid (Brichardi) prefers 8–9, while Reedfish (Ropefish) needs 6–7.5. 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 Reedfish (Ropefish) being nocturnal affect compatibility?

Reedfish (Ropefish) 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 Reedfish (Ropefish) during evening hours.

Editorial Review

Guidarium Editorial Desk

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

Last reviewed
April 28, 2026
Last updated
April 28, 2026
Issues or corrections?
Contact the editorial team

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