Thor amboinensis

Thor amboinensis, a.k.a "Sexy Shrimp" and "Sexy Anemone Shrimp" is an arthropod indigenous to the Indo-Pacific that grows to a maximum size of 1.5 inches. This fascinating shrimp exhibits an unusual trait of swaying its abdomen back and forth, hence the name Sexy shrimp. This species is usually found among the tentacles of an anemone. These tiny shrimp grow rapidly, molting about every 3-4 weeks.

These shrimp have recently been included in the aquarium hobby. They are considered reef safe, but they cannot be kept with larger fish that can eat them. A problem that should be noted is their tendency to attack and eat zoanthids when they are deprived of food. In the absence of an anemone in captivity, they have been known to have relationships with ricordea and other mushroom corals.