Common name: trilobate ceratosoma

General information

Ceratosoma trilobatum, commonly known as the Tri-lobed Ceratosoma or Ribbon Nudibranch, is a striking species of nudibranch, a group of soft-bodied, marine gastropod mollusks. This species is known for its vibrant colors and elaborate body shape, which includes a distinct trilobed mantle that extends beyond the foot and is adorned with raised tubercles. The coloration of C. trilobatum can vary, but it often features a combination of bright yellow, orange, and purple hues.

Care

Ceratosoma trilobatum requires a specialized aquarium setup that mimics its natural reef environment. They are sensitive to water quality and require stable conditions with excellent water filtration. As with many nudibranchs, they have specific dietary needs, feeding primarily on sponges. It is crucial to ensure that their diet in captivity includes the specific types of sponges they consume in the wild, which can be a challenge for the hobbyist.

Reproduction

Like many nudibranchs, C. trilobatum is a hermaphrodite, possessing both male and female reproductive organs. They can self-fertilize or mate with another individual. The eggs are laid in ribbon-like masses and will hatch into free-swimming larvae before settling down and transforming into their adult form.

Habitat

Ceratosoma trilobatum is found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They are typically seen on coral reefs and rocky substrates, often at depths ranging from the intertidal zone to about 25 meters. Their presence in an aquarium can add a touch of the exotic to a well-established reef tank, provided their specific care requirements are met.