Common name: Urchin Banded Shrimp

General information

The Urchin Banded Shrimp, Salmacis sphaeroides, is a distinctive and fascinating invertebrate commonly found in the marine aquarium trade. It is known for its unique appearance, featuring a translucent body with striking white bands and long, banded antennae. This species is relatively small, making it a suitable inhabitant for various tank sizes.

Care

Salmacis sphaeroides is a hardy species that adapts well to life in captivity. It requires a tank with plenty of live rock and hiding places to feel secure. This shrimp is not aggressive and can be kept with a variety of tank mates. However, care should be taken to house it with peaceful fish to avoid predation. A varied diet of meaty foods, such as brine shrimp, mysis shrimp, and finely chopped seafood, will help maintain its health and coloration.

Reproduction

In the wild, Salmacis sphaeroides reproduces by releasing eggs and sperm into the water column, where fertilization occurs externally. In the aquarium, breeding is less common, but with optimal conditions, hobbyists may observe larval stages. Rearing the larvae can be challenging due to their planktonic nature and the need for very fine food particles.

Symbiosis

One of the most intriguing aspects of the Urchin Banded Shrimp is its symbiotic relationship with sea urchins. It is often found living among the spines of its host, gaining protection from predators. The shrimp may also feed on parasites and dead tissue from the urchin, providing a cleaning service.

Habitat

Salmacis sphaeroides is typically found in the Indo-Pacific region, from the Red Sea to the Western Pacific. It inhabits coral reefs and lagoons, often associating with sea urchins in these environments.