Can Red Striped Eartheater and Silver Tiger Perch (American Tigerfish) Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Red Striped Eartheater and Silver Tiger Perch (American Tigerfish) are not recommended as tank mates due to incompatible hardness ranges. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Red Striped Eartheater

Geophagus surinamensis

Silver Tiger Perch (American Tigerfish)

Datnioides polota

🐠Family Group
Red Striped Eartheater
Cichlids - South American
Silver Tiger Perch (American Tigerfish)
Oddballs
Temperament
Red Striped Eartheater
Mostly Peaceful (4/10)
Silver Tiger Perch (American Tigerfish)
Aggressive (7/10)
Temperature
✓ Compatible
Red Striped Eartheater
24–28°C
Silver Tiger Perch (American Tigerfish)
20–28°C
pH Range
✓ Compatible
Red Striped Eartheater
6–7.5
Silver Tiger Perch (American Tigerfish)
7.5–9
Hardness (dGH)
✗ No overlap
Red Striped Eartheater
2–10
Silver Tiger Perch (American Tigerfish)
15–30
Water Type
✓ Compatible
Red Striped Eartheater
Freshwater Only
Silver Tiger Perch (American Tigerfish)
Brackish Tolerant
Flow Preference
✓ Compatible
Red Striped Eartheater
Moderate
Silver Tiger Perch (American Tigerfish)
Moderate
Min Tank Volume
Combined: 650 L
Red Striped Eartheater
250 L
Silver Tiger Perch (American Tigerfish)
650 L
Swimming Level
Shared: 2 zones
Red Striped Eartheater
BottomMiddle
Silver Tiger Perch (American Tigerfish)
MiddleBottom
🏷️Behavior Tags
Red Striped Eartheater
Digger (Disturbs Substrate)Fry PredatorHyperactive / Fast SwimmerAggressive to same species/look-alikes
Silver Tiger Perch (American Tigerfish)
Piscivore (Eats small/nano fish)Generally AggressiveTerritorial (Defends specific area)
Stocking calculator

Can your tank handle Red Striped Eartheater and Silver Tiger Perch (American Tigerfish)?

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 Striped Eartheater
Silver Tiger Perch (American Tigerfish)
Test both in my tank

Behaviour & Temperament

Red Striped Eartheater is a generally mild-mannered species (4/10), while Silver Tiger Perch (American Tigerfish) is semi-aggressive (7/10). This modest difference means Silver Tiger Perch (American Tigerfish) may occasionally assert dominance over Red Striped Eartheater.

Red Striped Eartheater and Silver Tiger Perch (American Tigerfish) 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 7.5 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

Hardness requirements are incompatible: Red Striped Eartheater needs 2–10 dGH while Silver Tiger Perch (American Tigerfish) requires 15–30 dGH.

Tank Setup

To house Red Striped Eartheater and Silver Tiger Perch (American Tigerfish) together, plan for an aquarium of at least 650 litres with a minimum length of 180 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), Leaf Litter/Blackwater, Driftwood (Digestion/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.

Why This Pairing Usually Fails in Practice

Red Striped Eartheater and Silver Tiger Perch (American Tigerfish) 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 Striped Eartheater and Silver Tiger Perch (American Tigerfish).

Frequently Asked Questions

Can Red Striped Eartheater and Silver Tiger Perch (American Tigerfish) live together?

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

What size tank do Red Striped Eartheater and Silver Tiger Perch (American Tigerfish) need?

A minimum of 650 litres (tank length at least 180 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 Striped Eartheater and Silver Tiger Perch (American Tigerfish) 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 Striped Eartheater or Silver Tiger Perch (American Tigerfish) aggressive?

Red Striped Eartheater is generally mild-mannered (4/10) and Silver Tiger Perch (American Tigerfish) is semi-aggressive (7/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Red Striped Eartheater and Silver Tiger Perch (American Tigerfish) need?

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

How do I manage Silver Tiger Perch (American Tigerfish)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Silver Tiger Perch (American Tigerfish) 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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