Common name: Watson's Sea Star

General Information

Gomophia watsoni, commonly known as Watson's Sea Star, is a strikingly beautiful species of sea star that is highly sought after by marine enthusiasts for its unique appearance and ecological significance. This species is characterized by its vibrant coloration, often displaying a mix of purple, orange, and white hues, making it a standout addition to any marine aquarium. Native to the Indo-Pacific region, Watson's Sea Star is typically found in coral reef environments where it plays a role in maintaining ecological balance.

While not as commonly seen in the aquarium trade as some other sea star species, Gomophia watsoni is appreciated for its relatively peaceful nature and its ability to contribute to the overall health of a reef system. However, its care requires attention to detail, as it is sensitive to changes in water quality and salinity.

Care

Watson's Sea Star is best suited for mature reef aquariums with stable water parameters. It thrives in tanks with plenty of live rock, which provides both a natural habitat and a source of food. This species is sensitive to fluctuations in water quality, so maintaining pristine conditions is essential. Regular monitoring of salinity, pH, and temperature is crucial to its well-being.

This sea star is not particularly fast-moving but is an active grazer, often seen exploring the tank in search of food. It is important to ensure that the aquarium has sufficient microalgae and detritus to sustain its dietary needs. Supplemental feeding may be required in tanks with limited natural food sources.

Diet and Feeding

Gomophia watsoni is primarily a detritivore, feeding on organic matter, microalgae, and biofilm found on live rock and substrate. In captivity, its diet can be supplemented with algae wafers, finely chopped seafood, or other sinking foods designed for bottom-dwelling invertebrates. Feeding should be done sparingly, as overfeeding can lead to water quality issues.

Behavior and Compatibility

Watson's Sea Star is a peaceful species that coexists well with other reef-safe invertebrates and fish. It does not exhibit aggressive behavior and is unlikely to harm other tank inhabitants. However, care should be taken when housing it with species that may prey on sea stars, such as certain triggerfish or puffers.

This species is an excellent addition to a reef tank, as it contributes to the overall cleanliness of the system by consuming detritus and algae. It is also a fascinating creature to observe, with its slow, deliberate movements and vibrant coloration.

Health and Common Issues

Like many sea stars, Gomophia watsoni is sensitive to changes in water quality and salinity. Sudden fluctuations can lead to stress, tissue damage, or even death. It is crucial to acclimate this species slowly when introducing it to a new tank to minimize stress.

Common health issues include bacterial infections and tissue necrosis, often resulting from poor water quality or physical damage. Regular water changes, careful handling, and maintaining optimal tank conditions can help prevent these problems.

Habitat

In the wild, Gomophia watsoni is found in the Indo-Pacific region, inhabiting coral reefs and rocky substrates. It prefers shallow to moderately deep waters with plenty of hiding spots and a steady supply of detritus and algae. Replicating this environment in captivity involves providing ample live rock, stable water conditions, and moderate water flow.