Harlequin Shrimp: The Starfish Specialist
The Harlequin Shrimp (Hymenocera elegans, often synonymized with Hymenocera picta) is one of the most sought-after and beautiful marine invertebrates, known for its strikingly elaborate coloration and unique, “dancing” movements. This small crustacean typically displays a white or cream body with large, ornate spots that range from blue and purple (Indo-Pacific variation, H. elegans) to red and pink (Hawaiian variation, H. picta).
Harlequin Shrimp are small, reaching a maximum body size of only 1.5 to 2 inches (4-5 cm). They are generally kept as mated pairs and are completely reef safe, posing no threat to corals or sessile inverts.
However, the Harlequin Shrimp is an obligate predator with a specialized diet focused on starfish, particularly the species Protoreaster linnei and Protoreaster nodosus.
| Specification | Detail |
|---|---|
| Scientific Name | Hymenocera elegans (Hymenocera picta) |
| Body Size | 1.5 – 2 inches (4 – 5 cm) |
| Coloration | White or cream with blue/purple or red/pink spots |
| Diet | Specialized predator of starfish |
| Reef Safety | Completely reef safe |
| Recommended Pairing | Mated pairs |
FAQ
What kind of starfish does the Harlequin Shrimp feed on?
The Harlequin Shrimp primarily feeds on starfish species such as Protoreaster linnei and Protoreaster nodosus.
Is the Harlequin Shrimp safe to keep in a reef tank?
Yes, the Harlequin Shrimp is completely reef safe and does not pose a threat to corals or other sessile invertebrates.
How big does a Harlequin Shrimp grow?
It reaches a maximum body size of 1.5 to 2 inches (4 to 5 cm).
Ava Scott –
The Harlequin Shrimp is a stunning addition to my reef tank. It moves gracefully and has a beautiful color pattern. I’ve kept it with my starfish, and it’s been feeding on them without causing any issues. Very active and interesting to watch.
John Turner –
Great visual appeal and very peaceful in the tank. I paired it with a male and it seems to be bonding well. The shrimp is not aggressive and doesn’t harm any corals. Only concern is it needs a specific starfish to feed on.
Wendy Vaughan –
I’ve had this shrimp for three months now and it’s become a highlight of my tank. The color changes in the light are mesmerizing. It’s very active and always near the starfish. I’m happy with the purchase.