Can False Glass Catfish and Red Zebra Cichlid (Cherry Red) Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 4, 2026
Not Recommended

False Glass Catfish and Red Zebra Cichlid (Cherry Red) are not recommended as tank mates due to conflicting pH requirements and incompatible hardness ranges. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

False Glass Catfish

Kryptopterus macrocephalus

Red Zebra Cichlid (Cherry Red)

Metriaclima estherae

🐠Family Group
False Glass Catfish
Catfish
Red Zebra Cichlid (Cherry Red)
Cichlids - African
Temperament
False Glass Catfish
Peaceful (2/10)
Red Zebra Cichlid (Cherry Red)
Aggressive (8/10)
Temperature
✓ Compatible
False Glass Catfish
22–28°C
Red Zebra Cichlid (Cherry Red)
24–28°C
pH Range
✗ No overlap
False Glass Catfish
5–7
Red Zebra Cichlid (Cherry Red)
7.8–8.6
Hardness (dGH)
✗ No overlap
False Glass Catfish
1–8
Red Zebra Cichlid (Cherry Red)
10–25
Water Type
✓ Compatible
False Glass Catfish
Freshwater Only
Red Zebra Cichlid (Cherry Red)
Freshwater Only
Flow Preference
✓ Compatible
False Glass Catfish
Low
Red Zebra Cichlid (Cherry Red)
Moderate
Min Tank Volume
Combined: 286 L
False Glass Catfish
110 L
Red Zebra Cichlid (Cherry Red)
208 L
Swimming Level
Shared: 1 zone
False Glass Catfish
Middle
Red Zebra Cichlid (Cherry Red)
MiddleBottom
🏷️Behavior Tags
False Glass Catfish
Shy / Slow Moving (Easily Stressed)Fry PredatorShrimp Eater
Red Zebra Cichlid (Cherry Red)
Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Plant DestroyerDigger (Disturbs Substrate)
Stocking calculator

Can your tank handle False Glass Catfish and Red Zebra Cichlid (Cherry Red)?

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.

False Glass Catfish
Red Zebra Cichlid (Cherry Red)
Test both in my tank

Behaviour & Temperament

False Glass Catfish is a peaceful species (2/10), while Red Zebra Cichlid (Cherry Red) is semi-aggressive (8/10). This notable difference means Red Zebra Cichlid (Cherry Red) may occasionally assert dominance over False Glass Catfish.

Large aggression gap (6 points) between False Glass Catfish and Red Zebra Cichlid (Cherry Red) increases stress risk for the more peaceful fish.

False Glass Catfish and Red Zebra Cichlid (Cherry Red) both frequent the Middle (Open Water) 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: Aggressive fish may bully and stress shy, slow-moving species.

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 False Glass Catfish (5–7) and Red Zebra Cichlid (Cherry Red) (7.8–8.6) do not overlap, making it impossible to satisfy both species simultaneously.

Hardness requirements are incompatible: False Glass Catfish needs 1–8 dGH while Red Zebra Cichlid (Cherry Red) requires 10–25 dGH.

Tank Setup

To house False Glass Catfish and Red Zebra Cichlid (Cherry Red) together, plan for an aquarium of at least 286 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: Plants - Densely covered, Plants - Floating, Leaf Litter/Blackwater, Sand (Sifters), Established Algae (Otocinclus). Meeting these requirements will help both species thrive.

Note a potential conflict in setup requirements: Red Zebra Cichlid (Cherry Red) is a plant destroyer, which conflicts with False Glass Catfish's requirement for live plants. Compromise where possible or prioritise the more critical need.

Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.

Why This Pairing Usually Fails in Practice

False Glass Catfish and Red Zebra Cichlid (Cherry Red) 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 False Glass Catfish and Red Zebra Cichlid (Cherry Red).

Frequently Asked Questions

Can False Glass Catfish and Red Zebra Cichlid (Cherry Red) live together?

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

What size tank do False Glass Catfish and Red Zebra Cichlid (Cherry Red) need?

A minimum of 286 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 False Glass Catfish and Red Zebra Cichlid (Cherry Red) 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 False Glass Catfish or Red Zebra Cichlid (Cherry Red) aggressive?

False Glass Catfish is peaceful (2/10) and Red Zebra Cichlid (Cherry Red) is semi-aggressive (8/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do False Glass Catfish and Red Zebra Cichlid (Cherry Red) need?

Their pH requirements do not overlap. False Glass Catfish prefers 5–7, while Red Zebra Cichlid (Cherry Red) needs 7.8–8.6. 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.

Editorial Review

Guidarium Editorial Desk

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

Last reviewed
May 4, 2026
Last updated
May 4, 2026
Issues or corrections?
Contact the editorial team

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