Can Red Zebra Cichlid (Cherry Red) and Weeksi Bichir Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Red Zebra Cichlid (Cherry Red) and Weeksi Bichir 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

Red Zebra Cichlid (Cherry Red)

Metriaclima estherae

Weeksi Bichir

Polypterus weeksii

🐠Family Group
Red Zebra Cichlid (Cherry Red)
Cichlids - African
Weeksi Bichir
Oddballs
Temperament
Red Zebra Cichlid (Cherry Red)
Aggressive (8/10)
Weeksi Bichir
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Red Zebra Cichlid (Cherry Red)
24–28°C
Weeksi Bichir
24–28°C
pH Range
✗ No overlap
Red Zebra Cichlid (Cherry Red)
7.8–8.6
Weeksi Bichir
6–7.5
Hardness (dGH)
✓ Compatible
Red Zebra Cichlid (Cherry Red)
10–25
Weeksi Bichir
5–15
Water Type
✓ Compatible
Red Zebra Cichlid (Cherry Red)
Freshwater Only
Weeksi Bichir
Freshwater Only
Flow Preference
✓ Compatible
Red Zebra Cichlid (Cherry Red)
Moderate
Weeksi Bichir
Low
Min Tank Volume
Combined: 470 L
Red Zebra Cichlid (Cherry Red)
208 L
Weeksi Bichir
470 L
Swimming Level
Shared: 1 zone
Red Zebra Cichlid (Cherry Red)
MiddleBottom
Weeksi Bichir
Bottom
🏷️Behavior Tags
Red Zebra Cichlid (Cherry Red)
Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Plant DestroyerDigger (Disturbs Substrate)
Weeksi Bichir
Piscivore (Eats small/nano fish)NocturnalJumper (Lid Required)Shrimp EaterFry Predator
Stocking calculator

Can your tank handle Red Zebra Cichlid (Cherry Red) and Weeksi Bichir?

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.

Red Zebra Cichlid (Cherry Red)
Weeksi Bichir
Test both in my tank

Behaviour & Temperament

Red Zebra Cichlid (Cherry Red) is a semi-aggressive species (8/10), while Weeksi Bichir is moderately assertive (6/10). This modest difference means Red Zebra Cichlid (Cherry Red) may occasionally assert dominance over Weeksi Bichir.

Red Zebra Cichlid (Cherry Red) and Weeksi Bichir 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.

Worth noting: Weeksi Bichir is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Weeksi Bichir 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 Red Zebra Cichlid (Cherry Red) (7.8–8.6) and Weeksi Bichir (6–7.5) 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.

Tank Setup

To house Red Zebra Cichlid (Cherry Red) and Weeksi Bichir together, plan for an aquarium of at least 470 litres with a minimum length of 150 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), Leaf Litter/Blackwater. 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

Red Zebra Cichlid (Cherry Red) and Weeksi Bichir 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 Red Zebra Cichlid (Cherry Red) and Weeksi Bichir.

Frequently Asked Questions

Can Red Zebra Cichlid (Cherry Red) and Weeksi Bichir live together?

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

What size tank do Red Zebra Cichlid (Cherry Red) and Weeksi Bichir need?

A minimum of 470 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 Red Zebra Cichlid (Cherry Red) and Weeksi Bichir 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 Red Zebra Cichlid (Cherry Red) or Weeksi Bichir aggressive?

Red Zebra Cichlid (Cherry Red) is semi-aggressive (8/10) and Weeksi Bichir is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Red Zebra Cichlid (Cherry Red) and Weeksi Bichir need?

Their pH requirements do not overlap. Red Zebra Cichlid (Cherry Red) prefers 7.8–8.6, while Weeksi Bichir needs 6–7.5. This makes them incompatible in the same water chemistry.

How do I manage Red Zebra Cichlid (Cherry Red)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Red Zebra Cichlid (Cherry Red) 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 Weeksi Bichir being nocturnal affect compatibility?

Weeksi Bichir 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 Weeksi Bichir during evening hours.

Editorial Review

Guidarium Editorial Desk

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

Last reviewed
May 11, 2026
Last updated
May 11, 2026
Issues or corrections?
Contact the editorial team

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