Can Red Peacock (Ruby Red) and Red Striped Eartheater Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Red Peacock (Ruby Red) and Red Striped Eartheater 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

Red Peacock (Ruby Red)

Aulonocara sp. 'Rubescens'

Red Striped Eartheater

Geophagus surinamensis

🐠Family Group
Red Peacock (Ruby Red)
Cichlids - African
Red Striped Eartheater
Cichlids - South American
Temperament
Red Peacock (Ruby Red)
Semi-Aggressive (6/10)
Red Striped Eartheater
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Red Peacock (Ruby Red)
24–28°C
Red Striped Eartheater
24–28°C
pH Range
✗ No overlap
Red Peacock (Ruby Red)
7.8–8.6
Red Striped Eartheater
6–7.5
Hardness (dGH)
✓ Compatible
Red Peacock (Ruby Red)
10–25
Red Striped Eartheater
2–10
Water Type
✓ Compatible
Red Peacock (Ruby Red)
Freshwater Only
Red Striped Eartheater
Freshwater Only
Flow Preference
✓ Compatible
Red Peacock (Ruby Red)
Moderate
Red Striped Eartheater
Moderate
Min Tank Volume
Combined: 366 L
Red Peacock (Ruby Red)
208 L
Red Striped Eartheater
250 L
Swimming Level
Shared: 2 zones
Red Peacock (Ruby Red)
MiddleBottom
Red Striped Eartheater
BottomMiddle
🏷️Behavior Tags
Red Peacock (Ruby Red)
Digger (Disturbs Substrate)Fry PredatorTerritorial (Defends specific area)Aggressive to same species/look-alikesHyperactive / Fast Swimmer
Red Striped Eartheater
Digger (Disturbs Substrate)Fry PredatorHyperactive / Fast SwimmerAggressive to same species/look-alikes
Stocking calculator

Can your tank handle Red Peacock (Ruby Red) 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.

Red Peacock (Ruby Red)
Red Striped Eartheater
Test both in my tank

Behaviour & Temperament

Red Peacock (Ruby Red) is a moderately assertive species (6/10), while Red Striped Eartheater is generally mild-mannered (4/10). This modest difference means Red Peacock (Ruby Red) may occasionally assert dominance over Red Striped Eartheater.

Red Peacock (Ruby Red) and Red Striped Eartheater both frequent the Middle (Open Water) and Bottom (Substrate) 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 Red Peacock (Ruby Red) (7.8–8.6) and Red Striped Eartheater (6–7.5) 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 Red Peacock (Ruby Red) and Red Striped Eartheater together, plan for an aquarium of at least 366 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: Sand (Sifters), 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 Usually Fails in Practice

Red Peacock (Ruby Red) and Red Striped Eartheater 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 Red Peacock (Ruby Red) and Red Striped Eartheater.

Frequently Asked Questions

Can Red Peacock (Ruby Red) and Red Striped Eartheater live together?

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

What size tank do Red Peacock (Ruby Red) and Red Striped Eartheater need?

A minimum of 366 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 Red Peacock (Ruby Red) 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 Red Peacock (Ruby Red) or Red Striped Eartheater aggressive?

Red Peacock (Ruby Red) is moderately assertive (6/10) and Red Striped Eartheater is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Red Peacock (Ruby Red) and Red Striped Eartheater need?

Their pH requirements do not overlap. Red Peacock (Ruby Red) prefers 7.8–8.6, while Red Striped Eartheater needs 6–7.5. This makes them incompatible in the same water chemistry.

How do I manage Red Peacock (Ruby Red)'s territorial behaviour?

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

Related Comparisons

Red Peacock (Ruby Red) & Afra Cichlid

·

Possible with Caution
Red Peacock (Ruby Red): PeacefulAfra Cichlid: Peaceful

Red Peacock (Ruby Red) & African Jewel Cichlid

·

Not Recommended
Red Peacock (Ruby Red): PeacefulAfrican Jewel Cichlid: Peaceful

Red Peacock (Ruby Red) & Altolamprologus Calvus

·

Possible with Caution
Red Peacock (Ruby Red): PeacefulAltolamprologus Calvus: Peaceful

Red Peacock (Ruby Red) & Altolamprologus Compressiceps

·

Possible with Caution
Red Peacock (Ruby Red): PeacefulAltolamprologus Compressiceps: Peaceful

Red Peacock (Ruby Red) & Aurora Yellow Mbuna

·

Possible with Caution
Red Peacock (Ruby Red): PeacefulAurora Yellow Mbuna: Peaceful

Red Peacock (Ruby Red) & Black Diamond Cichlid

·

Possible with Caution
Red Peacock (Ruby Red): PeacefulBlack Diamond Cichlid: Peaceful

Red Striped Eartheater & Aequidens Jenaro Herrera

·

Possible with Caution
Red Striped Eartheater: PeacefulAequidens Jenaro Herrera: Peaceful

Red Striped Eartheater & Altifrons Eartheater

·

Ideal Tank Mates
Red Striped Eartheater: PeacefulAltifrons Eartheater: Peaceful

Red Striped Eartheater & Bahia Red

·

Possible with Caution
Red Striped Eartheater: PeacefulBahia Red: Peaceful

Red Striped Eartheater & Banded Cichlid

·

Ideal Tank Mates
Red Striped Eartheater: PeacefulBanded Cichlid: Peaceful

Red Striped Eartheater & Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)

·

Possible with Caution
Red Striped Eartheater: PeacefulBarlow's Dwarf Cichlid (Apistogramma Maulbrüter): Peaceful

Red Striped Eartheater & Blue Acara

·

Possible with Caution
Red Striped Eartheater: PeacefulBlue Acara: Peaceful