Can Red Striped Eartheater and Reedfish (Ropefish) Live Together?

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

Yes, Red Striped Eartheater and Reedfish (Ropefish) 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 296 litres is recommended.


At a Glance

Red Striped Eartheater

Geophagus surinamensis

Reedfish (Ropefish)

Erpetoichthys calabaricus

🐠Family Group
Red Striped Eartheater
Cichlids - South American
Reedfish (Ropefish)
Oddballs
Temperament
Red Striped Eartheater
Mostly Peaceful (4/10)
Reedfish (Ropefish)
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Red Striped Eartheater
24–28°C
Reedfish (Ropefish)
22–28°C
pH Range
✓ Compatible
Red Striped Eartheater
6–7.5
Reedfish (Ropefish)
6–7.5
Hardness (dGH)
✓ Compatible
Red Striped Eartheater
2–10
Reedfish (Ropefish)
5–20
Water Type
✓ Compatible
Red Striped Eartheater
Freshwater Only
Reedfish (Ropefish)
Freshwater Only
Flow Preference
✓ Compatible
Red Striped Eartheater
Moderate
Reedfish (Ropefish)
Low
Min Tank Volume
Combined: 296 L
Red Striped Eartheater
250 L
Reedfish (Ropefish)
180 L
Swimming Level
Shared: 2 zones
Red Striped Eartheater
BottomMiddle
Reedfish (Ropefish)
BottomMiddle
🏷️Behavior Tags
Red Striped Eartheater
Digger (Disturbs Substrate)Fry PredatorHyperactive / Fast SwimmerAggressive to same species/look-alikes
Reedfish (Ropefish)
Piscivore (Eats small/nano fish)Shrimp EaterJumper (Lid Required)NocturnalHyperactive / Fast SwimmerSlime Coat Eater (Attacks Flat Fish)
Stocking calculator

Can your tank handle Red Striped Eartheater and Reedfish (Ropefish)?

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
Reedfish (Ropefish)
Test both in my tank

Behaviour & Temperament

Red Striped Eartheater is a generally mild-mannered species (4/10), while Reedfish (Ropefish) is generally mild-mannered (3/10). This modest difference means Red Striped Eartheater may occasionally assert dominance over Reedfish (Ropefish).

Red Striped Eartheater and Reedfish (Ropefish) 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.

Worth noting: Reedfish (Ropefish) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Reedfish (Ropefish) 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.

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 5–10 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Red Striped Eartheater and Reedfish (Ropefish) together, plan for an aquarium of at least 296 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), Leaf Litter/Blackwater, Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Plants - Densely covered. 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

Red Striped Eartheater and Reedfish (Ropefish) 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 Red Striped Eartheater and Reedfish (Ropefish).

Frequently Asked Questions

Can Red Striped Eartheater and Reedfish (Ropefish) live together?

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

What size tank do Red Striped Eartheater and Reedfish (Ropefish) need?

A minimum of 296 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 Striped Eartheater and Reedfish (Ropefish) 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 Reedfish (Ropefish) aggressive?

Red Striped Eartheater is generally mild-mannered (4/10) and Reedfish (Ropefish) is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Red Striped Eartheater and Reedfish (Ropefish) 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.

Does Reedfish (Ropefish) being nocturnal affect compatibility?

Reedfish (Ropefish) is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Reedfish (Ropefish) during evening hours.

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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