Can Msobo Mbuna and Reedfish (Ropefish) Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Msobo Mbuna 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

Msobo Mbuna

Metriaclima sp. "Msobo"

Reedfish (Ropefish)

Erpetoichthys calabaricus

🐠Family Group
Msobo Mbuna
Cichlids - African
Reedfish (Ropefish)
Oddballs
Temperament
Msobo Mbuna
Aggressive (8/10)
Reedfish (Ropefish)
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Msobo Mbuna
24–28°C
Reedfish (Ropefish)
22–28°C
pH Range
✗ No overlap
Msobo Mbuna
7.8–8.6
Reedfish (Ropefish)
6–7.5
Hardness (dGH)
✓ Compatible
Msobo Mbuna
10–25
Reedfish (Ropefish)
5–20
Water Type
✓ Compatible
Msobo Mbuna
Freshwater Only
Reedfish (Ropefish)
Freshwater Only
Flow Preference
✓ Compatible
Msobo Mbuna
Moderate
Reedfish (Ropefish)
Low
Min Tank Volume
Combined: 289 L
Msobo Mbuna
200 L
Reedfish (Ropefish)
180 L
Swimming Level
Shared: 2 zones
Msobo Mbuna
MiddleBottom
Reedfish (Ropefish)
BottomMiddle
🏷️Behavior Tags
Msobo Mbuna
Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Plant DestroyerDigger (Disturbs Substrate)
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 Msobo Mbuna 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.

Msobo Mbuna
Reedfish (Ropefish)
Test both in my tank

Behaviour & Temperament

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

Msobo Mbuna 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 24°C and 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.

The pH requirements of Msobo Mbuna (7.8–8.6) 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 Msobo Mbuna and Reedfish (Ropefish) together, plan for an aquarium of at least 289 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), Driftwood (Digestion/Hiding), Plants - Densely covered. Meeting these requirements will help both species thrive.

Note a potential conflict in setup requirements: Msobo Mbuna is a plant destroyer, which conflicts with Reedfish (Ropefish)'s requirement for live plants. Compromise where possible or prioritise the more critical need.

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

Msobo Mbuna 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 Msobo Mbuna and Reedfish (Ropefish).

Frequently Asked Questions

Can Msobo Mbuna 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 Msobo Mbuna and Reedfish (Ropefish) need?

A minimum of 289 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 Msobo Mbuna and Reedfish (Ropefish) 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 Msobo Mbuna or Reedfish (Ropefish) aggressive?

Msobo Mbuna 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 Msobo Mbuna and Reedfish (Ropefish) need?

Their pH requirements do not overlap. Msobo Mbuna prefers 7.8–8.6, while Reedfish (Ropefish) needs 6–7.5. This makes them incompatible in the same water chemistry.

How do I manage Msobo Mbuna's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Msobo Mbuna 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
May 6, 2026
Last updated
May 6, 2026
Issues or corrections?
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