Can Altifrons Eartheater and Intermedius Cichlid Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Altifrons Eartheater and Intermedius Cichlid 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

Altifrons Eartheater

Geophagus altifrons

Intermedius Cichlid

Tramitichromis intermedius

🐠Family Group
Altifrons Eartheater
Cichlids - South American
Intermedius Cichlid
Cichlids - African
Temperament
Altifrons Eartheater
Mostly Peaceful (4/10)
Intermedius Cichlid
Semi-Aggressive (5/10)
Temperature
✓ Compatible
Altifrons Eartheater
24–30°C
Intermedius Cichlid
24–28°C
pH Range
✗ No overlap
Altifrons Eartheater
5–7.5
Intermedius Cichlid
7.6–8.8
Hardness (dGH)
✓ Compatible
Altifrons Eartheater
1–10
Intermedius Cichlid
10–25
Water Type
✓ Compatible
Altifrons Eartheater
Freshwater Only
Intermedius Cichlid
Freshwater Only
Flow Preference
✓ Compatible
Altifrons Eartheater
Moderate
Intermedius Cichlid
Moderate
Min Tank Volume
Combined: 475 L
Altifrons Eartheater
475 L
Intermedius Cichlid
170 L
Swimming Level
Shared: 2 zones
Altifrons Eartheater
BottomMiddle
Intermedius Cichlid
BottomMiddle
🏷️Behavior Tags
Altifrons Eartheater
Digger (Disturbs Substrate)Plant DestroyerHyperactive / Fast SwimmerShrimp EaterFry Predator
Intermedius Cichlid
Digger (Disturbs Substrate)Fry PredatorTerritorial (Defends specific area)Hyperactive / Fast Swimmer
Stocking calculator

Can your tank handle Altifrons Eartheater and Intermedius Cichlid?

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.

Altifrons Eartheater
Intermedius Cichlid
Test both in my tank

Behaviour & Temperament

Altifrons Eartheater is a generally mild-mannered species (4/10), while Intermedius Cichlid is moderately assertive (5/10). This modest difference means Intermedius Cichlid may occasionally assert dominance over Altifrons Eartheater.

Altifrons Eartheater and Intermedius Cichlid both frequent the Bottom (Substrate) and 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.

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 Altifrons Eartheater (5–7.5) and Intermedius Cichlid (7.6–8.8) 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.

Tank Setup

To house Altifrons Eartheater and Intermedius Cichlid together, plan for an aquarium of at least 475 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), Driftwood (Digestion/Hiding), 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

Altifrons Eartheater and Intermedius Cichlid 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 Altifrons Eartheater and Intermedius Cichlid.

Frequently Asked Questions

Can Altifrons Eartheater and Intermedius Cichlid live together?

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

What size tank do Altifrons Eartheater and Intermedius Cichlid need?

A minimum of 475 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 Altifrons Eartheater and Intermedius Cichlid 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 Altifrons Eartheater or Intermedius Cichlid aggressive?

Altifrons Eartheater is generally mild-mannered (4/10) and Intermedius Cichlid is moderately assertive (5/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Altifrons Eartheater and Intermedius Cichlid need?

Their pH requirements do not overlap. Altifrons Eartheater prefers 5–7.5, while Intermedius Cichlid needs 7.6–8.8. This makes them incompatible in the same water chemistry.

How do I manage Intermedius Cichlid's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Intermedius Cichlid 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 11, 2026
Last updated
May 11, 2026
Issues or corrections?
Contact the editorial team

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