Can American Grass Shrimp and Banjo Catfish Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 2, 2026
Possible with Caution

Keeping American Grass Shrimp and Banjo Catfish together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 60 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

Banjo Catfish

Bunocephalus coracoideus

🐠Family Group
American Grass Shrimp
Invertebrates
Banjo Catfish
Catfish
Temperament
American Grass Shrimp
Peaceful (1/10)
Banjo Catfish
Peaceful (1/10)
Temperature
✓ Compatible
American Grass Shrimp
15–28°C
Banjo Catfish
20–28°C
pH Range
✓ Compatible
American Grass Shrimp
6.5–8
Banjo Catfish
6–8
Hardness (dGH)
✓ Compatible
American Grass Shrimp
4–15
Banjo Catfish
2–20
Water Type
✓ Compatible
American Grass Shrimp
Freshwater Only
Banjo Catfish
Freshwater Only
Flow Preference
✓ Compatible
American Grass Shrimp
Moderate
Banjo Catfish
Low
Min Tank Volume
Combined: 60 L
American Grass Shrimp
19 L
Banjo Catfish
60 L
Swimming Level
Shared: 1 zone
American Grass Shrimp
BottomMiddle
Banjo Catfish
Bottom
🏷️Behavior Tags
American Grass Shrimp
Nano / Bite-sized (Predation Risk)Hyperactive / Fast SwimmerFry PredatorJumper (Lid Required)
Banjo Catfish
NocturnalShy / Slow Moving (Easily Stressed)Digger (Disturbs Substrate)Shrimp EaterFry Predator
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Can your tank handle American Grass Shrimp and Banjo Catfish?

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
Banjo Catfish
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Behaviour & Temperament

Both American Grass Shrimp and Banjo Catfish are peaceful species with an aggression score of 1/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.

American Grass Shrimp and Banjo Catfish both frequent the 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.

Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion. Shrimp eaters may also prey on very small nano fish.

Worth noting: Banjo Catfish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, American Grass Shrimp is a known jumper, so a tight-fitting lid is essential.

To improve the chances of a peaceful coexistence in this community tank: A larger aquarium with ample hiding spots can help diffuse aggression and give the less dominant fish space to retreat.

Water Parameters

The safe temperature window for both species falls between 20°C and 28°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 and 8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 4–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house American Grass Shrimp and Banjo Catfish together, plan for an aquarium of at least 60 litres with a minimum length of 60 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 Banjo Catfish 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 Banjo Catfish.

Show 19 more tank sizes

Diet & Feeding

Feeding time deserves special attention with this pairing. Banjo Catfish is a known shrimp eater and may prey on small invertebrates or nano fish like American Grass Shrimp.

Frequently Asked Questions

Can American Grass Shrimp and Banjo Catfish live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 60 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do American Grass Shrimp and Banjo Catfish need?

A minimum of 60 litres (tank length at least 60 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 Banjo Catfish together?

Keep the aquarium between 20°C and 28°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.

Are American Grass Shrimp or Banjo Catfish aggressive?

American Grass Shrimp is peaceful (1/10) and Banjo Catfish is peaceful (1/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do American Grass Shrimp and Banjo Catfish need?

Both species overlap in the 6.5–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Does Banjo Catfish being nocturnal affect compatibility?

Banjo Catfish 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 Banjo Catfish during evening hours.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
May 2, 2026
Last updated
May 2, 2026
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