Common name: Gloomy Nudibranch

General Information

The Gloomy Nudibranch, scientifically known as Tambja morosa, is a striking sea slug that captivates with its deep blue to black coloration and contrasting bright blue or green markings. This nudibranch is a member of the Polyceridae family and is often sought after by enthusiasts for its unique appearance and relatively easy care in a well-maintained marine aquarium.

While not as popular as some other marine species, the Gloomy Nudibranch holds a niche appeal among hobbyists interested in the diversity of marine invertebrates. Its presence in a tank can provide educational insights into the fascinating world of sea slugs and their ecological roles.

Care

Caring for the Gloomy Nudibranch involves maintaining a stable marine environment with plenty of live rock. They are best suited for mature aquariums with established microfauna, which they feed on. While they can adapt to different tank conditions, they thrive in setups that mimic their natural habitat, including stable water parameters and gentle water flow.

Diet and Feeding

Tambja morosa are carnivorous, primarily feeding on bryozoans and other small invertebrates found on live rock. In captivity, their diet can be supplemented with specialized frozen or live foods that mimic their natural prey. It is crucial to ensure a continuous supply of suitable food to meet their dietary needs.

Behavior and Compatibility

The Gloomy Nudibranch is generally peaceful and does not pose a threat to other tank inhabitants. However, it is essential to monitor their interaction with other species, as they can sometimes be mistaken for food by larger, more aggressive fish.

Health and Common Issues

Maintaining the health of the Gloomy Nudibranch involves ensuring a clean and stable tank environment. They can be sensitive to poor water quality and fluctuations in tank conditions. Regular monitoring and maintenance are key to preventing common issues such as stress and disease.

Habitat

Tambja morosa is found in the Indo-Pacific region, inhabiting coral reefs and rocky substrates. They prefer shallow waters with ample hiding spots and access to their natural prey. In captivity, replicating these conditions can help ensure their well-being.