Stenopus hispidus is a “cleaning shrimp.” Individuals remove and consume parasites, injured tissue and rejected food particles from some coral reef organisms (Limbaugh et al., 1961). S. hispidus perches near the opening of the cave or ledge in which they are living and wave their antennae to attract fish (Humann, 1992). These locations sometimes become known as cleaning stations. Individuals have the freedom to enter the mouth and gill cavities of host organisms, without being eaten, but usually remain in contact with the substrate when cleaning. Species that S. hispidus has been known to clean include morays, tangs, grunts and groupers (Limbaugh et al., 1961).

Mutualist Species:

• morays, Muraenidae 
• tangs, Acanthurus 
• grunts, Haemulidae 
• groupers, Epinephelinae