Can Altifrons Eartheater and Red Striped Eartheater Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Ideal Tank Mates

Yes, Altifrons Eartheater and Red Striped Eartheater are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 475 litres is recommended.


At a Glance

Altifrons Eartheater

Geophagus altifrons

Red Striped Eartheater

Geophagus surinamensis

🐟Family Group
Altifrons Eartheater
Cichlids - South American
Red Striped Eartheater
Cichlids - South American
Temperament
Altifrons Eartheater
Mostly Peaceful (4/10)
Red Striped Eartheater
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Altifrons Eartheater
24–30°C
Red Striped Eartheater
24–28°C
pH Range
✓ Compatible
Altifrons Eartheater
5–7.5
Red Striped Eartheater
6–7.5
Hardness (dGH)
✓ Compatible
Altifrons Eartheater
1–10
Red Striped Eartheater
2–10
Water Type
✓ Compatible
Altifrons Eartheater
Freshwater Only
Red Striped Eartheater
Freshwater Only
Flow Preference
✓ Compatible
Altifrons Eartheater
Moderate
Red Striped Eartheater
Moderate
Min Tank Volume
Combined: 475 L
Altifrons Eartheater
475 L
Red Striped Eartheater
250 L
Swimming Level
Shared: 2 zones
Altifrons Eartheater
BottomMiddle
Red Striped Eartheater
BottomMiddle
🏷️Behavior Tags
Altifrons Eartheater
Digger (Disturbs Substrate)Plant DestroyerHyperactive / Fast SwimmerShrimp EaterFry Predator
Red Striped Eartheater
Digger (Disturbs Substrate)Fry PredatorHyperactive / Fast SwimmerAggressive to same species/look-alikes
Stocking calculator

Can your tank handle Altifrons Eartheater and Red Striped Eartheater?

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
Red Striped Eartheater
Test both in my tank

Behaviour & Temperament

Both Altifrons Eartheater and Red Striped Eartheater are generally mild-mannered species with an aggression score of 4/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.

Altifrons Eartheater and Red Striped Eartheater 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.

Both fish can tolerate a pH between 6 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 2–10 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Altifrons Eartheater and Red Striped Eartheater 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), 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 Works in Practice

Altifrons Eartheater and Red Striped Eartheater work best when the tank gives each fish enough room to use its preferred level of the aquarium and enough cover to avoid constant visual contact. The score matters, but the real-world success usually comes from matching their pace, keeping water stable, and resisting the urge to crowd the tank just because the pair looks safe on paper.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Altifrons Eartheater and Red Striped Eartheater.

Frequently Asked Questions

Can Altifrons Eartheater and Red Striped Eartheater live together?

Yes. Altifrons Eartheater and Red Striped Eartheater are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Altifrons Eartheater and Red Striped Eartheater 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 Red Striped Eartheater 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 Red Striped Eartheater aggressive?

Altifrons Eartheater is generally mild-mannered (4/10) and Red Striped Eartheater is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Altifrons Eartheater and Red Striped Eartheater need?

Both species overlap in the 6–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

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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