Can American Grass Shrimp and Red Striped Eartheater Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Possible with Caution

Keeping American Grass Shrimp and Red Striped Eartheater together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 255 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

American Grass Shrimp

Palaemonetes kadiakensis

Red Striped Eartheater

Geophagus surinamensis

🐠Family Group
American Grass Shrimp
Invertebrates
Red Striped Eartheater
Cichlids - South American
Temperament
American Grass Shrimp
Peaceful (1/10)
Red Striped Eartheater
Mostly Peaceful (4/10)
Temperature
✓ Compatible
American Grass Shrimp
15–28°C
Red Striped Eartheater
24–28°C
pH Range
✓ Compatible
American Grass Shrimp
6.5–8
Red Striped Eartheater
6–7.5
Hardness (dGH)
✓ Compatible
American Grass Shrimp
4–15
Red Striped Eartheater
2–10
Water Type
✓ Compatible
American Grass Shrimp
Freshwater Only
Red Striped Eartheater
Freshwater Only
Flow Preference
✓ Compatible
American Grass Shrimp
Moderate
Red Striped Eartheater
Moderate
Min Tank Volume
Combined: 255 L
American Grass Shrimp
19 L
Red Striped Eartheater
250 L
Swimming Level
Shared: 2 zones
American Grass Shrimp
BottomMiddle
Red Striped Eartheater
BottomMiddle
🏷️Behavior Tags
American Grass Shrimp
Nano / Bite-sized (Predation Risk)Hyperactive / Fast SwimmerFry PredatorJumper (Lid Required)
Red Striped Eartheater
Digger (Disturbs Substrate)Fry PredatorHyperactive / Fast SwimmerAggressive to same species/look-alikes
Stocking calculator

Can your tank handle American Grass Shrimp 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.

American Grass Shrimp
Red Striped Eartheater
Test both in my tank

Behaviour & Temperament

American Grass Shrimp is a peaceful species (1/10), while Red Striped Eartheater is generally mild-mannered (4/10). This modest difference means Red Striped Eartheater may occasionally assert dominance over American Grass Shrimp.

American Grass Shrimp 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.

Worth noting: American Grass Shrimp 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 6.5 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 4–10 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house American Grass Shrimp and Red Striped Eartheater together, plan for an aquarium of at least 255 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.

Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Plants - Densely covered, Leaf Litter/Blackwater, Sand (Sifters). 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 Needs Extra Planning in Practice

This pairing usually fails when the tank is treated like a standard mixed community and the caution flags are ignored. American Grass Shrimp and Red Striped Eartheater need extra room, more cover, and closer observation during the first few weeks so small aggression, feeding, or territory issues do not snowball into a long-term problem.

Suitable Tank Sizes

Standard aquarium sizes large enough for both American Grass Shrimp and Red Striped Eartheater.

Show 1 more tank size

Frequently Asked Questions

Can American Grass Shrimp and Red Striped Eartheater live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 255 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do American Grass Shrimp and Red Striped Eartheater need?

A minimum of 255 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 American Grass Shrimp 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 American Grass Shrimp or Red Striped Eartheater aggressive?

American Grass Shrimp is peaceful (1/10) and Red Striped Eartheater is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do American Grass Shrimp and Red Striped Eartheater need?

Both species overlap in the 6.5–7.5 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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