Common name: Purple-Edged Ceratosoma

General information

The Purple-Edged Ceratosoma, scientifically known as Goniobranchus aureopurpureus, is a striking species of nudibranch, a group of soft-bodied, marine gastropod mollusks. This species is known for its vibrant coloration, typically featuring a purple edge along its body, complemented by a yellow to golden mantle with purple spots. Nudibranchs like Goniobranchus aureopurpureus are often sought after by marine enthusiasts for their unique appearance and behavior.

Care

Caring for Goniobranchus aureopurpureus requires a well-established reef aquarium with stable water parameters. They are sensitive to changes in water quality, so regular monitoring and maintenance are crucial. This species feeds on specific sponges, so it's essential to ensure a continuous food source, which can be challenging in a home aquarium. Due to their specialized diet, they are considered difficult to keep and are recommended for experienced aquarists.

Reproduction

Like many nudibranchs, Goniobranchus aureopurpureus is a hermaphrodite, possessing both male and female reproductive organs. They can engage in reciprocal mating, where both individuals exchange sperm to fertilize their eggs. The eggs are laid in ribbon-like masses and will develop into free-swimming larvae before settling down and transforming into the adult form.

Symbiosis

While Goniobranchus aureopurpureus does not have notable symbiotic relationships like some other marine organisms, its role in the ecosystem is significant. As a predator of sponges, it helps control sponge populations, which can compete with corals for space on the reef.

Habitat

Goniobranchus aureopurpureus is typically found in the Indo-Pacific region, from the Red Sea to South Africa and east to the central Pacific. They inhabit coral reefs and rocky substrates, usually at depths ranging from the intertidal zone to about 30 meters. Their presence in an aquarium can add a touch of the exotic to a well-maintained reef system.