Common name: corkscrew anemone

General information

The Corkscrew Anemone, Bartholomea annulata, is a distinctive species of sea anemone found in the Caribbean and Western Atlantic. It is known for its long, corkscrew-like tentacles that can give it a striking appearance in the aquarium. This anemone is a photosynthetic species, hosting symbiotic algae known as zooxanthellae within its tissues, which provide it with additional nutrients through photosynthesis.

Care

Bartholomea annulata requires moderate to high lighting to support its zooxanthellae, along with moderate water flow to mimic its natural reef environment. It is important to provide a sandy or rubble substrate where the anemone can anchor itself. Care should be taken to ensure that it does not get sucked into powerheads or overflow boxes, as its long tentacles can easily become entangled.

Reproduction

In the wild, Corkscrew Anemones can reproduce both sexually and asexually. Asexual reproduction is common in the aquarium through a process called pedal laceration, where new anemones form from pieces of the parent's base. Sexual reproduction is less common in captivity but can occur if conditions are ideal.

Symbiosis

While Bartholomea annulata does not typically host clownfish like some other anemones, it can form symbiotic relationships with certain species of shrimp and crabs that seek refuge among its tentacles. These invertebrates help keep the anemone clean by removing debris and may also provide protection from predators.

Habitat

The natural habitat of the Corkscrew Anemone includes shallow reefs and seagrass beds, where it attaches to the substrate. It is commonly found at depths ranging from the intertidal zone to about 40 meters deep. In the aquarium, replicating this environment will help the anemone thrive.