Can Amano Shrimp and Harlequin Rasbora Live Together?

🟢Ideal Tank Mates

Yes, Amano Shrimp and Harlequin Rasbora 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 72 litres is recommended.


At a Glance

Amano Shrimp

Caridina multidentata

Harlequin Rasbora

Trigonostigma heteromorpha

🐠Family Group
Amano Shrimp
Invertebrates
Harlequin Rasbora
Cyprinids
Temperament
Amano Shrimp
Peaceful (1/10)
Harlequin Rasbora
Peaceful (1/10)
Temperature
✓ Compatible
Amano Shrimp
18–28°C
Harlequin Rasbora
22–28°C
pH Range
✓ Compatible
Amano Shrimp
6–7.5
Harlequin Rasbora
5–7.5
Hardness (dGH)
✓ Compatible
Amano Shrimp
4–14
Harlequin Rasbora
2–12
Water Type
✓ Compatible
Amano Shrimp
Freshwater Only
Harlequin Rasbora
Freshwater Only
Flow Preference
✓ Compatible
Amano Shrimp
Moderate
Harlequin Rasbora
Moderate
Min Tank Volume
Combined: 72 L
Amano Shrimp
38 L
Harlequin Rasbora
60 L
Swimming Level
Shared: 1 zone
Amano Shrimp
BottomMiddle
Harlequin Rasbora
MiddleTop
🏷️Behavior Tags
Amano Shrimp
Nano / Bite-sized (Predation Risk)Aggressive Eater (Starves shy fish)Jumper (Lid Required)Hyperactive / Fast Swimmer
Harlequin Rasbora
Hyperactive / Fast Swimmer

Behaviour & Temperament

Both Amano Shrimp and Harlequin Rasbora 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.

Amano Shrimp and Harlequin Rasbora both frequent the 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: Amano Shrimp is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 22°C and 28°C. Aim for the midpoint of this range (around 25.0°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 4–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Amano Shrimp and Harlequin Rasbora together, plan for an aquarium of at least 72 litres with a minimum length of 60 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

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: Established Algae (Otocinclus), Plants - Densely covered, 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.

Frequently Asked Questions

Can Amano Shrimp and Harlequin Rasbora live together?

Yes. Amano Shrimp and Harlequin Rasbora are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Amano Shrimp and Harlequin Rasbora need?

A minimum of 72 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 Amano Shrimp and Harlequin Rasbora together?

Keep the aquarium between 22°C and 28°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are Amano Shrimp or Harlequin Rasbora aggressive?

Amano Shrimp is peaceful (1/10) and Harlequin Rasbora is peaceful (1/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Amano Shrimp and Harlequin Rasbora 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.


Related Comparisons