Common name: Cavernularia obesa

General information

Cavernularia obesa, commonly known as Pulse Coral or Waving Hand Coral, is a captivating soft coral species that adds dynamic movement to the reef aquarium. This coral is known for its pulsating polyps, which rhythmically open and close, creating a mesmerizing display. The polyps are typically a vibrant purple or pink, adding a splash of color to the tank.

Care

Pulse Coral is considered a good choice for intermediate to advanced aquarists due to its moderate care requirements. It thrives in moderate to high lighting conditions and benefits from moderate water flow, which helps to mimic its natural environment and keep the polyps healthy. Pulse Coral should be placed in an area of the tank where it can fully expand without being obstructed by other corals or tank decorations.

Feeding is not usually necessary as Cavernularia obesa can obtain nutrients through photosynthesis with the help of its symbiotic zooxanthellae. However, occasional feeding with phytoplankton or finely minced marine foods can promote growth and vitality.

Symbiosis

While Cavernularia obesa does not have any well-known symbiotic relationships like those seen in clownfish and anemones, its pulsating action may help with the distribution of nutrients and removal of waste products, benefiting nearby organisms in the aquarium ecosystem.

Habitat

Cavernularia obesa is found in the Indo-Pacific region, typically in shallow waters where it attaches to substrates in areas with moderate currents. This habitat allows for the optimal flow needed for the coral's pulsating behavior and feeding.