Common name: vermillion seastar

General information

The Blue Sea Star, scientifically known as Pentagonaster duebeni, is a striking marine invertebrate that adds both color and diversity to the reef aquarium. This species is known for its vibrant blue coloration and pentagon-shaped body, which can make it a centerpiece in any saltwater setup.

Care

Blue Sea Stars require a well-established aquarium with stable water conditions and plenty of live rock to explore. They are sensitive to changes in water quality, so regular monitoring and maintenance are crucial. They feed on detritus and small organisms found in the substrate, so a mature tank with a healthy microfauna population is beneficial.

Reproduction

Reproduction in Pentagonaster duebeni is typically sexual, with individuals releasing gametes into the water column for external fertilization. In the aquarium, breeding is rare, but stable conditions and a large enough population can increase the chances of successful reproduction.

Symbiosis

While not known for any specific symbiotic relationships, Blue Sea Stars can coexist peacefully with a variety of tank mates, provided they are not predatory towards echinoderms.

Habitat

Pentagonaster duebeni is found in the temperate waters of the Southern Hemisphere, particularly around Australia and New Zealand. They inhabit rocky reefs and are often found at depths ranging from the intertidal zone to deeper waters.