Max Size: 6cm

Amano Shrimp (Caridina multidentata)

Amano Shrimp are peaceful, hardy, adaptable and great at keeping your aquarium clean, making them an excellent choice for a beginner aquarist

looking to experiment with invertebrates for the first time. In addition, Amano Shrimp are good algae eaters and aquarium cleaners. Amano shrimp are able to live in various water temperatures and can be kept outside in garden ponds in frost-free areas.

You can keep these Shrimp in either a species only or a community aquarium alongside other peaceful, non-aggressive fish. Ideal tankmates for these Shrimp could include other Caridina Species as well as most small to medium-sized non-aggressive species such as Tetras, Barbs, Danios, Catfish and most freshwater Snails. However, it would be better to avoid housing your Amanos with aggressive fish like Goldfish and Cichlids. You should also avoid keeping your Shrimp with Crayfish and Lobsters.

It would be best if you kept Amano Shrimps in groups containing odd numbers making sure you have more females than males as this will prevent any dominant behaviour between males and will help to stop males harassing the females continuously.

The ideal aquarium setup for Amano Shrimp should include lots of live aquarium plants as they love to climb, graze and hide on them as well as some driftwood roots or branches to provide further hiding spots if they feel threatened and extra areas to graze on.

Amano Shrimp have glasslike bodies with light brown, green, or light reddish-brown shades. These Shrimp also have many solid dots and dashes that run the entire length of their body and can be either reddish-brown or greyish-blue in colour. In addition, these Shrimp also exhibit a narrow whitish-cream coloured stripe that runs from the head to the tail. Their eyes are black, and they have lengthy antennae.

Quick Facts
Scientific NameCaridina multidentata
Year Described1860
Other NamesAlgae Eating Shrimp, Yamato Shrimp, Japonica,Japanese shrimp
Classification Malacostraca
Order Decapoda
OriginsChina, Fiji, Japan, Madagascar, Philippines, Taiwan
Aquarium LevelBottom - Middle
Lifespan2 - 3 years
Water Parameters
Water TypeFreshwater
PH6 .5 - 8.0
GH5 - 15
KH1 - 10
TDS100 - 450
70 - 80℉
21.1 - 26.7℃

Photos of the Amano Shrimp

Amono Shrimp
Amano Shrimp
Amano Shrimp
Amano Shrimp


Amano Shrimp

Natural Habitat

The original species of Amano shrimp came from the Ogasawara Islands in Micronesia, directly south of Tokyo in Japan. You can also find these Shrimp in Taiwan, the Ryukyu Islands, Fiji and Madagascar. These Shrimp inhabit freshwater streams and rivers as well as in marshes and swamps where there is plenty of aquatic plants and algae, and the substrate is soft. Amano shrimp will migrate to brackish water or saltwater areas during breeding periods. This is because the larvae need saltier water to survive the first few stages of their life.

What to feed the Amano Shrimp

Amano Shrimps are probably one of the unfussiest eaters in the aquarium hobby. They will graze on almost all algae forms and eat virtually any waste, including fish faeces or decaying plants. However these Shrimp

require a balanced diet of dried food such as pellets and algae wafers as well as green vegetables.

Amano Shrimp also enjoy picking at moss balls or sponge filters because the fine food particles will collect on them, and the Shrimp can enjoy a leisurely meal.

How to sex the Amano Shrimp

It can be somewhat tricky to differentiate between the male and female Amano Shrimp. Females usually have rounder abdomens and are much bigger than males. In contrast, males have much straighter bodies than females and are somewhat smaller than females.

How to breed the Amano Shrimp

Amano Shrimp are somewhat challenging to breed in your home aquarium, and raising the young past larvae stage of development is quite tricky. Still, it is possible and rewarding with a determined attitude and patience.

Amano Shrimp require brackish water for breeding with a slightly higher temperature than usual. However, the Amano Shrimp will naturally mate as long as the water parameters are stable and they are in a safe environment.

The female Amano Shrimp can produce anything from 1000-3000 eggs, where they remain on her swimmerets below the stomach until they are ready to hatch. The eggs are very obvious, changing from green to yellowish-brown and taking up to 5 weeks to hatch.

Other Caridina of interest

Black King Kong Shrimp(Caridina cf Cantonensis)
Blue Bolt Shrimp(Caridina cantonensis)
Cardinal Sulawesi Shrimp(Caridina Dennerli)
Crystal Black Shrimp(Caridina Cantonensis)
Crystal Red Shrimp(Caridina Cantonensis)
Red Nose Shrimp(Caridina gracilirostris)
View all Caridina
Date Added: 26/05/2020 - Updated: 04/03/2022 17:14:19