About the species

The Amano shrimp (Caridina multidentata) is one of the most prized freshwater shrimp in the aquarium hobby, known for its outstanding ability to keep an aquarium free of algae. The body is translucent with rows of dark dots and dashes along the sides, and it grows considerably larger than the dwarf shrimp.

Facts

• Latin name: Caridina multidentata
• Common name: Amano
• Size: 4–6 cm
• Lifespan: 2–3 years, sometimes longer

Behavior

Amano is peaceful, tireless and constantly working. Its size lets it hold its own in community aquariums, and it grazes over driftwood, rocks, plant leaves and the substrate all day.

Reproduction

• Females carry hundreds of very small eggs
• The larvae require brackish water in order to develop
• In practice the species therefore does not reproduce in a freshwater aquarium

Feeding

Amano is the most effective algae eater in the hobby and feeds on:

• Soft algae and diatoms
• Biofilm
• Leftovers and organic material

Feel free to supplement with:

• Algae wafers or spirulina
• Blanched vegetables
• A quality shrimp food

Aquarium

• Minimum aquarium size: 40 litres
• Substrate: Gravel or sand

Difficulty level

🟢 Easy

Recommendation

The Amano is our first choice when the goal is algae control. It is hardy, handles a wide range of water values and is large enough to be kept with most peaceful fish. Avoid overfeeding — a hungry Amano works harder on the algae. Copper is lethal, so check plant fertilisers and medications.