Beaded Anemone (Heteractis aurora) Breeding Guide

Heteractis aurora is a sand-dwelling host anemone with bead-like tentacle swellings, hosting Clark's clownfish. Like other Heteractis it can divide asexually, but its sexual reproduction releases pelagic larvae and is not achievable at home.

Overview

Heteractis aurora, the beaded sea anemone, occurs across Indo-Pacific waters in Micronesia and Melanesia to East Africa, including the Red Sea, and from Australia to the Ryukyu Islands. Its longer tentacles contain bead-like swellings, with up to 20 such swellings on a single tentacle, reaching about 50 mm long on a broad flattened oral disc up to 250 mm wide. It lives among coral and along rocky reef edges, often partially buried in sand in areas of strong current, and hosts seven anemonefish species including Clark's anemonefish (Amphiprion clarkii).

Reproductive Mode

Detailed reproductive data specific to H. aurora are not provided in the consulted source. As a host sea anemone it follows the general reproductive modes documented for sea anemones: sexual release of gametes into the water and asexual division.

Asexual Propagation by Fission

Sea anemones can reproduce asexually by splitting, generating genetically identical clones from a single founder. For Heteractis species this is the only pathway that could plausibly occur in a closed system, although H. aurora is not documented as a frequent spontaneous splitter in the consulted source.

Sexual Reproduction

Sexual reproduction in sea anemones broadcasts gametes into the water, and fertilization produces swimming planula larvae that disperse before settling. This pelagic larval phase cannot be reproduced in a home aquarium, so sexual reproduction of H. aurora occurs only in the wild or under specialised culture.