Common Name(s)
Amano shrimp, Japanese shrimp, Yamato shrimp, algae shrimp
Scientific Name
Caridina multidentata
Family
Atyidae
Origin
Japan, Korea, and Taiwan
Temperament
Peaceful
Maximum Size
2 inches
Minimum Tank Size
5 gallons
Tank Setup
Found in still-moving water and swamps in the wild. They can tolerate brackish water and freshwater.
Tank Region
Bottom
Diet
Algae, shrimp pellets, anything it can get its hands on.
Breeding
Difficult. In the wild the eggs are released, and the larvae drift through stages in brackish and saltwater. In the aquarium it’s been known that they breed in freshwater, but it’s rare. Female shrimp will release a pheromone into the water that signals they are ready to breed.
Compatibility
They can live with shrimp safe fish.
Ease of Keeping
They are hardy once they are established. Some may die soon after introduced to a fish tank because they are usually wild-caught.
Care
pH: Doesn't matter; Temperature: 68-75 Fahrenheit
amano shrimp.JPG

800px-Caridina_multidentata(Hamamatsu,Shizuoka,Japan,2007).jpg

By Seotaro - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=3195549
Caridina_multidentata_Stein.jpg

By MdE (page at dewiki | page at commons) - own photo, CC BY-SA 3.0 de, https://commons.wikimedia.org/w/index.php?curid=1528288

Males are smaller than females.

They used to be known as C. japonica.
A good algae eater, but they need to be fed other food in order for it to survive.