Riffle Shrimp

Riffle Shrimp (Atyopsis moluccensis)

A unique and fascinating filter-feeding shrimp, the Riffle Shrimp uses its specialised fan-like front legs to strain particles from the water current. Unlike most shrimp, it perches on rocks and wood in areas of good flow, making it a characterful and unusual addition to community tanks.

Care at a Glance:

• Minimum Tank Size: 55L with moderate flow, rocks, and driftwood
• Temperature: 22–28°C
• pH Range: 6.5–7.5
• Water Hardness: Moderate (GH 6–10)
• Temperament: Peaceful, filter-feeding
• Diet: Powdered shrimp food, liquid fry food, biofilm, micro-pellets
• Max Size: 5–7cm
• Lifespan: 1–2 years
• Care Level: Easy to moderate (needs water flow and suspended food)

Tank Mates: Peaceful community fish such as tetras, rasboras, and corydoras; avoid large or aggressive fish that may outcompete it for food.

Origin: Southeast Asia — fast-flowing streams (Malaysia, Indonesia)