The Harlequin Shrimp (Hymenocera picta) is one of the most visually striking invertebrates available in the marine hobby, prized for its bold patterns and unique feeding behaviour.
Featuring a cream or pale body covered in vibrant spots of purple, blue, or pink, this shrimp has a truly eye-catching appearance that stands out in any reef aquarium. Its flattened claws and slow, deliberate movements give it a distinctive, almost graceful presence as it explores the tank.
Harlequin Shrimp are peaceful and reef-safe with corals and fish, but they are highly specialised predators, feeding exclusively on starfish. They are often kept by experienced aquarists to help control pest starfish populations, such as Asterina species. Due to their specific dietary needs, they require a consistent supply of starfish to thrive, making them best suited to dedicated setups or knowledgeable keepers prepared to meet their feeding requirements.
Typically kept singly or in bonded pairs, Harlequin Shrimp will often stay close to their chosen territory, spending much of their time around rockwork. Their fascinating feeding habits and unique appearance make them a captivating species for those willing to provide the care they need.
Care Information:
Scientific Name: Hymenocera picta
Origin: Indo-Pacific reefs
Max Size: Approx. 4–5 cm
Diet: Obligate starfish feeder
Tank Size: 60L+ recommended
Water Parameters: SG 1.020–1.025, 24–27°C, pH 8.1–8.4
Compatibility: Peaceful; avoid large or aggressive tankmates
Special Requirements: Requires a steady supply of starfish
A truly unique addition to the marine aquarium, the Harlequin Shrimp is best suited to experienced hobbyists seeking something extraordinary, offering both stunning visual appeal and fascinating natural behaviour.
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