Common name: Kuni's nudibranch

General information

Goniobranchus kuniei, commonly known as Kunie's Chromodoris or Purple-Edged Ceratosoma, is a striking species of nudibranch, a group of soft-bodied, marine gastropod mollusks. This species is renowned for its vibrant coloration, featuring a blue or purple body with a yellow or white border and intricate patterns. Nudibranchs like Goniobranchus kuniei are often referred to as 'sea slugs', but they are much more than that, being highly evolved and specialized creatures.

Care

Goniobranchus kuniei requires a well-established reef aquarium with plenty of live rock for grazing on microorganisms and biofilm. They are sensitive to water quality, so stable conditions and excellent filtration are crucial. This species is not recommended for beginners due to their specific dietary needs and sensitivity to environmental changes.

Reproduction

Like many nudibranchs, Goniobranchus kuniei 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 metamorphosing into their adult form.

Habitat

Goniobranchus kuniei is found in the tropical Indo-Pacific region, from the Red Sea to the central Pacific. They are typically observed on coral reefs and adjacent habitats, often at depths ranging from the intertidal zone to about 30 meters. Their presence indicates a healthy reef environment with a good supply of sponges, which are their primary food source.