Common name: White-spotted Sea Squirt

General Information

The White-spotted Sea Squirt, scientifically known as Pycnoclavella diminuta, is a fascinating marine invertebrate belonging to the Tunicata subphylum. These sea squirts are known for their translucent orange bodies adorned with distinctive white spots, making them a unique addition to the marine environment. Although not as commonly kept as other marine species, they are of interest to aquarists who specialize in unique and less conventional marine life.

These sea squirts play a significant role in marine ecosystems as filter feeders, contributing to water purification and nutrient cycling. Their presence in aquariums can provide educational insight into the diversity of marine life and the complex interactions within reef ecosystems.

Care

Caring for the White-spotted Sea Squirt in captivity requires a stable and well-established marine environment. They thrive in tanks with ample live rock, which provides surfaces for attachment and enhances their natural filtration capabilities. Due to their sensitivity to water quality, maintaining pristine conditions with stable salinity and temperature is crucial.

These sea squirts are non-aggressive and can coexist with a variety of peaceful tank mates. However, they are sensitive to changes in water quality and should be housed in mature aquariums where parameters are consistently monitored and maintained.

Diet and Feeding

As filter feeders, White-spotted Sea Squirts obtain their nutrition by filtering plankton and organic particles from the water column. In captivity, they require a continuous supply of phytoplankton or specially formulated liquid foods designed for filter feeders. Ensuring a steady flow of nutrient-rich water will support their dietary needs and overall health.

Behavior and Compatibility

White-spotted Sea Squirts are peaceful and non-aggressive, making them suitable for community tanks with other non-aggressive species. They are sessile organisms, meaning they remain attached to surfaces and do not exhibit active movement. Their presence can add visual interest and diversity to the tank without disrupting other inhabitants.

Health and Common Issues

Maintaining optimal water quality is essential for the health of White-spotted Sea Squirts. They are sensitive to poor water conditions and fluctuations in temperature and salinity. Regular water changes and monitoring of water parameters are vital to prevent stress and disease.

When introducing White-spotted Sea Squirts to an aquarium, ensure they are free from physical damage and show no signs of disease. Healthy specimens will have intact tunics and vibrant white spots.

Habitat

White-spotted Sea Squirts are naturally found in shallow marine waters, often attached to rocks, coral reefs, and other substrates. They are distributed in various regions, including the Indo-Pacific. In their natural habitat, they contribute to the ecosystem by filtering water and providing surfaces for other marine organisms to attach.