Caridina Japonica Amano Shrimp: Complete Guide

The amano Shrimp, scientifically know as Caridina multidentata is a popular freshwater shrimp for planted aquariums. Learn how to provide the right setup, water conditions, food, tank mates, and everyday care.

Quick Facts
Scientific Name

Caridina multidentata

Adult Size

2 - 2.5 inches

Lifespan

2 - 3 years

Temperature

62 78˚F

Temperament

Peaceful

Difficulty Level

Moderate

What Is an Amano Shrimp?

Amano shrimp are freshwater shrimp widely kept in planted aquariums for their peaceful behavior and constant grazing. They are commonly known as Amano shrimp and are scientifically classified as Caridina multidentata, although the species has also been associated with the older name Caridina japonica.

These active scavengers spend much of their time exploring plants, rocks, wood, and other surfaces in search of algae and food particles. Their transparent to grayish body, distinctive markings, and relatively large size make them easy to recognize among common freshwater aquarium shrimp.

Understanding their natural behavior and basic needs makes it easier to create a stable aquarium where Amano shrimp can thrive.

01

Tank Setup and Water Conditions

Amano shrimp need plenty of shelter, a well-planted aquarium and stable water conditions. A secure lid is important as they can be escape artists.

See our shrimp tank setup guide [1] for full details

tank setup and water conditions

02

What Do Amano Shrimp Eat?

They graze on algae and biofilm throughout the day, and will also accept supplementary foods such as blanched vegetables and high-quality pellets.

Read our what to feed aquarium shrimp [2] & which algae shrimp eat [3] guides

What Do Amano Shrimp Eat, caridina japonica amano shrimp

03

Choosing Tank Mates

Amano shrimp do well with small, peaceful fish and invertebrates. Avoid aggressive species and large fish that may see them as food.

See our shrimp tank mates guide [4] for compatible options.

Choosing Tank Mates

04

Breeding Amano Shrimp

Amano shrimp live and carry eggs in freshwater, but their larvae need salty water to develop.

Learn more in our breeding Amano shrimp [5] guide.

Breeding Amano Shrimp

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Frequently Asked Questions

How big do Amano shrimp get?

Adult Amano shrimp typically reach 4–5 cm (1.5–2 inches). Females usually grow larger than males.

What tank size do Amano shrimp need?

A 10-gallon aquarium, approximately 40 litres, is a practical starting point. Provide plants, hiding places and grazing surfaces, and consider the needs of any other tank inhabitants.

Do Amano shrimp eat hair algae?

Yes, Amano shrimp graze on hair algae and other soft algae, but they will not remove every type. Supplement their diet with suitable shrimp food. Explore which algae aquarium shrimp eat for more detail.

Can Amano shrimp breed in freshwater?

Females can carry eggs and release larvae in freshwater, but the larvae need salty water to develop into juvenile shrimp. Learn more in our breeding Amano shrimp guide.

Can Amano shrimp live with cherry shrimp?

Yes, when water conditions suit both species. They do not interbreed, but Amanos can outcompete cherry shrimp for food. Make sure both species have access to food and shelter.

Is an empty shell a dead Amano shrimp?

A clear, hollow shell is usually a shed exoskeleton from molting. Shrimp may hide while their new shell hardens. Our shrimp molting guide explains how to recognize a normal shed.