Can Bucktooth Tetra (Exodon) and Malawi Gar Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Bucktooth Tetra (Exodon) and Malawi Gar 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

Bucktooth Tetra (Exodon)

Exodon paradoxus

Malawi Gar

Lichnochromis acuticeps

🐠Family Group
Bucktooth Tetra (Exodon)
Characins
Malawi Gar
Cichlids - African
Temperament
Bucktooth Tetra (Exodon)
Highly Aggressive (9/10)
Malawi Gar
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Bucktooth Tetra (Exodon)
23–28°C
Malawi Gar
24–28°C
pH Range
✗ No overlap
Bucktooth Tetra (Exodon)
5.5–7.5
Malawi Gar
7.8–8.6
Hardness (dGH)
✓ Compatible
Bucktooth Tetra (Exodon)
1–15
Malawi Gar
10–25
Water Type
✓ Compatible
Bucktooth Tetra (Exodon)
Freshwater Only
Malawi Gar
Freshwater Only
Flow Preference
✓ Compatible
Bucktooth Tetra (Exodon)
Moderate
Malawi Gar
Moderate
Min Tank Volume
Combined: 350 L
Bucktooth Tetra (Exodon)
200 L
Malawi Gar
350 L
Swimming Level
Shared: 1 zone
Bucktooth Tetra (Exodon)
MiddleTop
Malawi Gar
MiddleBottom
🏷️Behavior Tags
Bucktooth Tetra (Exodon)
Generally AggressiveAggressive to same species/look-alikesFin NipperPiscivore (Eats small/nano fish)Hyperactive / Fast SwimmerEye Biter (Attacks slow moving fish)Jumper (Lid Required)
Malawi Gar
Piscivore (Eats small/nano fish)Fry PredatorHyperactive / Fast SwimmerTerritorial (Defends specific area)
Stocking calculator

Can your tank handle Bucktooth Tetra (Exodon) and Malawi Gar?

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.

Bucktooth Tetra (Exodon)
Malawi Gar
Test both in my tank

Behaviour & Temperament

Bucktooth Tetra (Exodon) is a highly aggressive species (9/10), while Malawi Gar is moderately assertive (6/10). This modest difference means Bucktooth Tetra (Exodon) may occasionally assert dominance over Malawi Gar.

Bucktooth Tetra (Exodon) and Malawi Gar 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.

Worth noting: Bucktooth Tetra (Exodon) 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 Bucktooth Tetra (Exodon) (5.5–7.5) and Malawi Gar (7.8–8.6) 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 Bucktooth Tetra (Exodon) and Malawi Gar together, plan for an aquarium of at least 350 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: Driftwood (Digestion/Hiding), Sand (Sifters), Smooth Gravel (Sensitive Barbels). 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

Bucktooth Tetra (Exodon) and Malawi Gar 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 Bucktooth Tetra (Exodon) and Malawi Gar.

Frequently Asked Questions

Can Bucktooth Tetra (Exodon) and Malawi Gar live together?

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

What size tank do Bucktooth Tetra (Exodon) and Malawi Gar need?

A minimum of 350 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 Bucktooth Tetra (Exodon) and Malawi Gar 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 Bucktooth Tetra (Exodon) or Malawi Gar aggressive?

Bucktooth Tetra (Exodon) is highly aggressive (9/10) and Malawi Gar is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Bucktooth Tetra (Exodon) and Malawi Gar need?

Their pH requirements do not overlap. Bucktooth Tetra (Exodon) prefers 5.5–7.5, while Malawi Gar needs 7.8–8.6. This makes them incompatible in the same water chemistry.

Will Bucktooth Tetra (Exodon) nip Malawi Gar's fins?

Bucktooth Tetra (Exodon) is a known fin nipper. If Malawi Gar has long or flowing fins, there is a real risk of fin damage. Keeping Bucktooth Tetra (Exodon) in a larger group can help redirect nipping behaviour toward conspecifics.

How do I manage Malawi Gar's territorial behaviour?

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