Amano Shrimp Care Guide: The Ultimate Algae Clean-Up Crew

Amano Shrimp (Caridina multidentata), also known as Yamato Shrimp or Japanese Algae Eaters, are among the most popular freshwater shrimp species for aquarists—especially those with planted tanks. Known for their relentless appetite for algae and low-maintenance nature, Amano Shrimp are a staple in aquascaping and community aquariums.

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Why Choose Amano Shrimp?

Amano Shrimp are beloved for their efficiency as algae eaters, helping to control hair algae, soft green algae, and leftover food in the aquarium. Their peaceful temperament and compatibility with a wide range of tank mates make them an excellent addition to many freshwater setups.

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Natural Habitat

Originally found in the rivers and streams of Japan and Taiwan, Amano Shrimp prefer clean, well-oxygenated waters with a steady flow. In the aquarium, they thrive in planted environments that mimic their natural habitat.

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Care Requirements

• Tank Size: 10 gallons and up

• Water Temperature: 68°F – 78°F

• pH: 6.5 – 7.5

• GH/KH: Moderate hardness, 4–14 dGH

• Lifespan: Up to 2–3 years

• Diet: Primarily algae, biofilm, leftover fish food, and blanched vegetables (zucchini, spinach)

Amano Shrimp are more tolerant of fluctuations than other Caridina species but still require good water quality and stable parameters.

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Behavior and Compatibility

These shrimp are active and social, often seen scavenging together in groups. They're non-aggressive and do well in peaceful community tanks with small fish like tetras, rasboras, guppies, and other invertebrates.

Avoid housing them with large or aggressive fish such as cichlids, which may see them as a snack.

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Breeding

Breeding Amano Shrimp in captivity is very difficult because their larvae require brackish water to develop. While they may breed in freshwater, the larvae usually don’t survive without careful salinity control.

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Fun Fact

Amano Shrimp gained their popularity thanks to legendary aquascaper Takashi Amano, who introduced them as part of his natural aquarium design philosophy. Their role as algae eaters has since become essential in many planted tanks.

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Final Thoughts

If you're looking for a shrimp species that’s easy to care for, incredibly useful, and fun to watch, Amano Shrimp are a top-tier choice. Whether you're battling algae or just want to enhance the biodiversity of your tank, these hardworking inverts are up to the task.