Amano Shrimp – Caridina multidenata

Amano Shrimp, also known as Japanese Shrimp or Yamato Shrimp, are popular freshwater invertebrates renowned for their algae-eating abilities and peaceful nature. They are often used in aquariums to help control algae growth while adding movement and activity to the tank.

Description:

Common Name: Amano Shrimp, Japanese Shrimp, Yamato Shrimp

Scientific Name: Caridina multidentata

Family: Atyidae

Size: Up to 2 inches (5 cm)

Coloration: Transparent body with a light brown or grayish tint; features noticeable dark stripe along the back

Native Region:

Amano Shrimp are native to rivers and streams in Japan and parts of East Asia, where they are found in both freshwater and brackish waters.

Aquarium Setup:

Tank Size: Minimum 10 gallons, though larger tanks are preferred for better environmental stability

Substrate: Soft sand or fine gravel, but they will also thrive on planted substrates with plenty of hiding spots

Plants and Decor: Live plants, mosses, and driftwood provide natural surfaces for grazing and hiding

Water Parameters:

Temperature: 70-80F (21-27C)

pH: 6.5-7.5 (neutral to slightly acidic)

Hardness: Soft to moderately hard water (4-10 dGH)

TDS (Total Dissolved Solids): 150-250 ppm

Care Level:

Difficulty: Easy to moderate; ideal for both beginners and experienced hobbyists

Diet: Primarily algae eaters; will also feed on detritus, biofilm, and leftover fish food. Supplement with algae wafers and blanched vegetables.

Behavior: Peaceful and active; best kept in groups, often seen scavenging and interacting with each other

Additional Tips:

Tank Mates: Ideal tank mates include peaceful fish and other shrimp species. Avoid keeping them with aggressive or overly large fish that might prey on them.

Breeding: Amano Shrimp do not breed in freshwater; their larvae require brackish water to develop, making them difficult to breed in home aquariums.

Maintenance: Regular water changes and stable parameters are essential to maintaining healthy shrimp.