Can Glass Catfish and Shell Dweller (Multi) Live Together?

🔴Not Recommended

Glass Catfish and Shell Dweller (Multi) 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

Glass Catfish

Kryptopterus vitreolus

Shell Dweller (Multi)

Neolamprologus multifasciatus

🐠Family Group
Glass Catfish
Catfish
Shell Dweller (Multi)
Cichlids - African
Temperament
Glass Catfish
Peaceful (1/10)
Shell Dweller (Multi)
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Glass Catfish
24–28°C
Shell Dweller (Multi)
24–27°C
pH Range
✗ No overlap
Glass Catfish
6–7
Shell Dweller (Multi)
7.8–9
Hardness (dGH)
✓ Compatible
Glass Catfish
1–10
Shell Dweller (Multi)
10–25
Water Type
✓ Compatible
Glass Catfish
Freshwater Only
Shell Dweller (Multi)
Freshwater Only
Flow Preference
✓ Compatible
Glass Catfish
Moderate
Shell Dweller (Multi)
Moderate
Min Tank Volume
Combined: 132 L
Glass Catfish
110 L
Shell Dweller (Multi)
38 L
Swimming Level
✓ Different zones
Glass Catfish
Middle
Shell Dweller (Multi)
Bottom
🏷️Behavior Tags
Glass Catfish
Shy / Slow Moving (Easily Stressed)Fry Predator
Shell Dweller (Multi)
Digger (Disturbs Substrate)Territorial (Defends specific area)Hyperactive / Fast SwimmerAggressive to same species/look-alikes

Behaviour & Temperament

Glass Catfish is a peaceful species (1/10), while Shell Dweller (Multi) is moderately assertive (6/10). This notable difference means Shell Dweller (Multi) may occasionally assert dominance over Glass Catfish.

In terms of spatial distribution, Glass Catfish prefers the Middle (Open Water) zone, whereas Shell Dweller (Multi) occupies the Bottom (Substrate) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion.

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 Glass Catfish (6–7) and Shell Dweller (Multi) (7.8–9) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–10 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Glass Catfish and Shell Dweller (Multi) together, plan for an aquarium of at least 132 litres with a minimum length of 90 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

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, Sand (Sifters), Shells (Breeding/Hiding). 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.

Find the right tank equipment

Browse tanks, décor, and equipment suited for this setup.

Frequently Asked Questions

Can Glass Catfish and Shell Dweller (Multi) live together?

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

What size tank do Glass Catfish and Shell Dweller (Multi) need?

A minimum of 132 litres (tank length at least 90 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 Glass Catfish and Shell Dweller (Multi) 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 Glass Catfish or Shell Dweller (Multi) aggressive?

Glass Catfish is peaceful (1/10) and Shell Dweller (Multi) is moderately assertive (6/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Glass Catfish and Shell Dweller (Multi) need?

Their pH requirements do not overlap. Glass Catfish prefers 6–7, while Shell Dweller (Multi) needs 7.8–9. This makes them incompatible in the same water chemistry.

How do I manage Shell Dweller (Multi)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Shell Dweller (Multi) 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.


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