Feather Duster Worm (Sabellastarte sanctijosephi) – Complete Care Guide

General Information

The Feather Duster Worm, scientifically known as Sabellastarte sanctijosephi, is a captivating and unique addition to reef aquariums. This species is renowned for its intricate and colorful crown of radioles (feather-like appendages) that it uses for filter feeding. These worms are not only fascinating to watch but also play a functional role in maintaining water quality by filtering out suspended particles. Their tube-like structures, made from a combination of mucus and sand or shell fragments, provide them with protection and a permanent home.

Native to tropical and subtropical waters, Sabellastarte sanctijosephi is found in coral reefs, lagoons, and sandy substrates. Its vibrant crown, which can range from shades of brown and white to more striking patterns, makes it a popular choice among aquarists looking to add a touch of elegance to their tanks.

Care

Feather Duster Worms are relatively easy to care for, provided their specific needs are met. They thrive in well-established aquariums with stable water parameters and moderate flow. These worms require a substrate or live rock to anchor their tubes. While they are non-aggressive and reef-safe, care should be taken to ensure they are not housed with species that may prey on them, such as certain wrasses or crabs.

Lighting is not a critical factor for Sabellastarte sanctijosephi, as they do not rely on photosynthesis. However, maintaining good water quality and providing a consistent source of food are essential for their health.

Diet and Feeding

As filter feeders, Feather Duster Worms consume plankton and other microscopic particles suspended in the water. In captivity, they can be fed liquid foods designed for filter feeders, such as phytoplankton and marine snow. Regular feeding is necessary to ensure their survival, especially in tanks with low natural plankton levels.

Feed them 2-3 times a week, using a turkey baster or similar tool to direct food near their crown. Avoid overfeeding, as excess food can degrade water quality.

Behavior and Compatibility

Feather Duster Worms are peaceful and non-aggressive, making them ideal for community reef tanks. They are solitary creatures but can coexist with other Feather Duster Worms without issue. Their primary interaction with the environment involves extending their crown to feed and retracting it quickly when threatened.

While they are reef-safe, caution should be exercised when housing them with predatory fish or invertebrates that may nip at their crown or disturb their tubes. Suitable tank mates include peaceful fish, shrimp, and other invertebrates.

Reproduction

Reproduction in Sabellastarte sanctijosephi is not commonly observed in home aquariums. These worms reproduce sexually, releasing eggs and sperm into the water column. Fertilized eggs develop into free-swimming larvae before settling and constructing their tubes. Successful breeding in captivity is rare and requires specific conditions, including a stable and nutrient-rich environment.

Health and Common Issues

Feather Duster Worms are relatively hardy but can be sensitive to sudden changes in water parameters. Stress or poor water quality may cause them to shed their crown, a process known as "dropping the crown." While this can be alarming, the crown often regenerates if conditions improve.

To select a healthy specimen, look for a worm with an intact and vibrant crown, securely anchored in its tube. Avoid individuals with damaged tubes or those that appear inactive.

Common issues include predation, starvation, and damage to their tubes. Regular feeding, stable water conditions, and careful selection of tank mates can help prevent these problems.

Habitat

In the wild, Sabellastarte sanctijosephi inhabits coral reefs, sandy substrates, and lagoon environments. They are typically found in shallow waters with moderate currents, which help deliver plankton and other food particles to their crowns. Replicating these conditions in captivity, including moderate water flow and a stable substrate, will help ensure their well-being.

Common name: Feather Duster Worm