Harlequin ShrimpHow to Care for Harlequin Shrimp written by Dave Burr The Harlequin Shrimp feeds almost exclusively on starfish and is especially useful in ridding your aquarium of the parasitic Asterina Starfish. It requires only one larger starfish per month to maintain proper health. When kept in aquariums with infestations of small starfish additional feeding is usually not required. Predators: Triggers, Larger Hawkfish, Groupers, Lionfish, and large predatory