Common name: Chalice sponge

General information

The Feather Star Sponge, scientifically known as Phakellia ventilabrum, is a fascinating species of sponge found in marine environments. This sponge is notable for its unique morphology, resembling the arms of a feather star (crinoid). It is a member of the Demospongiae class, which is the largest class within the phylum Porifera, encompassing over 90% of all sponge species.

Care

Caring for Phakellia ventilabrum in a reef aquarium requires stable water conditions and moderate to strong water flow to mimic its natural habitat. It is a filter feeder, so maintaining high water quality is essential. The sponge should not be exposed to air, as this can introduce air bubbles into its system, which can be fatal.

Reproduction

Sponges like Phakellia ventilabrum can reproduce both sexually and asexually. Sexual reproduction involves the release of sperm into the water column, which then fertilizes eggs in other sponges. Asexually, they can regenerate from fragments or produce buds that detach and grow into new individuals.

Habitat

Phakellia ventilabrum is typically found in deeper waters on rocky substrates or within coral reefs. It prefers environments where it can anchor securely and extend its body into the current for optimal feeding.