Common name: Red Sea Apple

General information

The Red Sea Apple, scientifically known as Negombata corticata, is a species of sea cucumber that is highly sought after in the reefkeeping hobby for its striking appearance. This invertebrate is characterized by its vibrant red coloration with white to yellow spots, and a unique apple-like shape, hence the name. It is a member of the family Cucumariidae and is native to the Red Sea and the Western Indian Ocean.

Care

Caring for Negombata corticata requires a well-established aquarium with a stable environment. They are sensitive to changes in water quality and require a tank with a deep sand bed and live rock to provide natural food sources. They are detritivores, feeding on detritus and organic matter, which helps keep the substrate clean. It is crucial to avoid copper-based medications and maintain stable water parameters to ensure their health.

Reproduction

Reproduction in Negombata corticata is not commonly observed in the home aquarium. In the wild, they reproduce by releasing gametes into the water column, where fertilization occurs externally. The larvae then go through a planktonic stage before settling to the bottom and developing into adults.

Symbiosis

While not known for any specific symbiotic relationships, Negombata corticata plays a role in the ecosystem by processing detritus and contributing to the nutrient cycle within the aquarium.

Habitat

Negombata corticata is found in the Red Sea and along the coast of the Western Indian Ocean. They inhabit reef slopes and lagoons, often burrowing in sandy or muddy substrates. In the aquarium, they require similar conditions with plenty of hiding places and a substrate suitable for burrowing.