Common name: White-capped swallowtail slug

General information

Chelidonura inornata, commonly known as the Black Velvet Sea Slug or Velvet Headshield Slug, is a species of small, colorful sea slug belonging to the family Aglajidae. This species is known for its striking appearance, with a velvety black body contrasted by blue or white marginal lines and a pair of distinctive tail lobes. It is a popular subject among underwater photographers and a unique addition to the marine aquarium.

Care

The care of Chelidonura inornata in a home aquarium requires attention to detail, as they are sensitive to water quality and require a specific diet. They thrive in well-established aquariums with stable water parameters and plenty of live rock for grazing. These sea slugs primarily feed on flatworms, making them beneficial for controlling flatworm populations in reef tanks. However, their specialized diet means they can starve if flatworms are not present, so supplemental feeding may be necessary.

Reproduction

Reproduction in Chelidonura inornata involves laying eggs in a gelatinous ribbon, which is often attached to the substrate or aquarium glass. The larvae that hatch are planktonic and can be challenging to rear in captivity due to their small size and specific dietary requirements.

Habitat

Chelidonura inornata is found in the tropical Indo-Pacific region, from the Red Sea to the central Pacific. They inhabit shallow reef environments, often seen on or near coral rubble, where they hunt for flatworms. In the aquarium, providing a similar environment with ample hiding places and a mature microfauna population will help these sea slugs thrive.