Amano shrimp

Amano shrimp, scientifically known as Caridina multidentata or Japonica shrimp, are quite a popular choice of shrimp for aquariums. With their intriguing behavior, efficient algae-eating habits, and striking appearance, these shrimp have become a sought-after addition to freshwater tanks. In this comprehensive guide, we will delve into various aspects of Amano shrimp care, including their size and appearance, natural habitat, behavior, dietary preferences, and expert tips for creating an ideal home environment in your aquarium.


Amano shrimp are a medium-sized species, growing to an average length of 5-6 centimeters (2-2.5 inches). They feature a translucent body with a unique and eye-catching coloration. Sporting a range of earthy hues from brown to green, these shrimp often exhibit distinctive horizontal dotted stripes along their bodies. Their elongated, curved rostrum and prominent eyes make them instantly recognizable and a captivating addition to any tank.


Originally hailing from the freshwater rivers and streams of Japan, Korea and Taiwan, Amano shrimp are well adapted to various water conditions. In the wild, they thrive in fast-flowing, well-oxygenated waters with ample hiding spots among aquatic vegetation and rocks. Recreating these conditions in your aquarium will ensure a comfortable and stress-free habitat for your Amano shrimp.


Amano shrimp are renowned for their diligent algae-consuming behavior. They are natural cleaners, tirelessly scouring surfaces for algae growth and decaying matter. Their peaceful nature makes them excellent tank mates for a variety of community fish. Observing their constant movement and cleaning efforts can be both entertaining and beneficial for your tank’s overall health.


Amano shrimp are predominantly herbivores, with a voracious appetite for algae. Their diet should consist of a variety of plant-based foods, including high-quality algae wafers, spirulina pellets, and blanched vegetables such as zucchini or spinach. Providing a balanced and nutrient-rich diet is crucial for their well-being and ensures their effectiveness in keeping your tank clean. Many people keep them as a natural clean-up crew for their aquarium.

Keeping the Amano shrimp at home

Creating a suitable environment for Amano shrimp requires careful attention to water parameters, tank setup, and tank mates. Here are some essential tips to consider:

Tank size: Provide a tank with a minimum capacity of 38 liters (10 gallons) to accommodate a small group of Amano shrimp comfortably.
Water parameters: Maintain a temperature range of 20-26 degrees Celsius (68-79 degrees Fahrenheit) and a pH level between 6.5 and 7.5. A hardness level of 5-12 dGH is ideal.
Aquarium setup: Mimic their natural habitat with ample hiding spots, driftwood, and live or artificial aquatic plants. Maintain a gentle water flow using a sponge filter to simulate their preferred conditions.
Tank mates: Amano shrimp are peaceful and can coexist with a variety of community fish, such as tetras, rasboras, and gouramis. Avoid aggressive or larger species that may pose a threat to the shrimp.
Maintenance: Regular water changes of around 20% every two weeks, along with a balanced diet and algae control, will contribute to the health and longevity of your Amano shrimp.

Amano shrimp offer both aesthetic appeal and practical benefits for aquarium enthusiasts. Their unique appearance, efficient algae-eating habits, and peaceful demeanor make them an excellent addition to a variety of freshwater tanks. By emulating their natural habitat and adhering to proper care guidelines, you can provide a thriving and visually captivating environment for these remarkable creatures. Invest in Amano shrimp care, and you’ll be rewarded with a cleaner, more vibrant aquarium and the joyful antics of these fascinating crustaceans.

Scientific nameCaridina multidentata
Type of aquariumFreshwater aquarium
Size5-6 cm / 2-2.5 inches
RegionNative to Japan, Korea and Taiwan
Ideal tank size38 liters / 10 gallons
Ideal water temperature20-26 °C / 68-79 °F
DietAlgae, plant-based foods
ReproductionComplex, typically occurs in brackish water
Life span2-3 years
SchoolingNot known for schooling behavior
SpecialtiesVarying temperatures are recommended as they experience in nature, this will help these shrimp stay healthy and live longer compared to a constant maintained temperature. With every water change you can add cold water back to the tank to accomplish this temperature change. When the shrimp is molting, leave the old skin in the aquarium. The shrimp will eat the old skin, which is full of beneficial vitamins and minerals.

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