Can Neon Blue Cichlid and Reedfish (Ropefish) Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Neon Blue Cichlid 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

Neon Blue Cichlid

Paracyprichromis nigripinnis

Reedfish (Ropefish)

Erpetoichthys calabaricus

🐠Family Group
Neon Blue Cichlid
Cichlids - African
Reedfish (Ropefish)
Oddballs
Temperament
Neon Blue Cichlid
Mostly Peaceful (3/10)
Reedfish (Ropefish)
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Neon Blue Cichlid
24–27°C
Reedfish (Ropefish)
22–28°C
pH Range
✗ No overlap
Neon Blue Cichlid
8–9
Reedfish (Ropefish)
6–7.5
Hardness (dGH)
✓ Compatible
Neon Blue Cichlid
10–20
Reedfish (Ropefish)
5–20
Water Type
✓ Compatible
Neon Blue Cichlid
Freshwater Only
Reedfish (Ropefish)
Freshwater Only
Flow Preference
✓ Compatible
Neon Blue Cichlid
Moderate
Reedfish (Ropefish)
Low
Min Tank Volume
Combined: 180 L
Neon Blue Cichlid
150 L
Reedfish (Ropefish)
180 L
Swimming Level
Shared: 2 zones
Neon Blue Cichlid
MiddleBottom
Reedfish (Ropefish)
BottomMiddle
🏷️Behavior Tags
Neon Blue Cichlid
Hyperactive / Fast Swimmer
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 Neon Blue Cichlid 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.

Neon Blue Cichlid
Reedfish (Ropefish)
Test both in my tank

Behaviour & Temperament

Both Neon Blue Cichlid and Reedfish (Ropefish) are generally mild-mannered species with an aggression score of 3/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.

Neon Blue Cichlid 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 27°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.

The pH requirements of Neon Blue Cichlid (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 Neon Blue Cichlid 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

Neon Blue Cichlid 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 Neon Blue Cichlid and Reedfish (Ropefish).

Show 5 more tank sizes

Frequently Asked Questions

Can Neon Blue Cichlid 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 Neon Blue Cichlid 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 Neon Blue Cichlid and Reedfish (Ropefish) together?

Keep the aquarium between 24°C and 27°C. A target of around 25.5°C sits comfortably within both species' preferred ranges.

Are Neon Blue Cichlid or Reedfish (Ropefish) aggressive?

Neon Blue Cichlid is generally mild-mannered (3/10) and Reedfish (Ropefish) is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Neon Blue Cichlid and Reedfish (Ropefish) need?

Their pH requirements do not overlap. Neon Blue Cichlid prefers 8–9, while Reedfish (Ropefish) needs 6–7.5. This makes them incompatible in the same water chemistry.

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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