Anthelia flexibilis Propagation Guide

Propagating Anthelia flexibilis, a long-stalked encrusting xeniid, by cutting its mat and keeping its rockwork spread in check.

Overview

Anthelia flexibilis is a soft coral in the family Xeniidae (genus established by Lamarck in 1816). It is an Anthelia with longer, flexible polyp stalks that sway in flow, growing from an encrusting base. As with the genus generally, it spreads as a mat over rockwork rather than forming a compact head.

Reproductive Mode

Propagation is asexual. The coral encrusts outward from its base across the substrate, forming new attachment as the advancing tissue meets fresh rock, the self-spreading growth characteristic of the Xeniidae.

Fragging / Asexual Propagation

Frag by cutting a portion of the encrusting mat, preferably together with the rubble or rock it has grown onto, then relocate that rock-backed piece to a new rock or plug. Banding it in position lets the tissue creep onto the new surface, which is more reliable than bare glue for xeniids.

1. Cut a portion of the encrusting mat with scissors or a blade.
2. Keep the rubble or rock the coral has grown onto.
3. Band the rock-backed piece to a new rock or plug.
4. Hold it in low flow until the tissue creeps over and anchors.

Conditions for Propagation

Gentle flow and stable, mature water help the cut mat re-encrust the new surface. An isolated rock keeps the spread contained, since the colony will otherwise advance onto adjacent corals.

Common Challenges

The same encrusting growth that makes propagation simple also drives rapid spread across the rockwork. Containment is the priority: trim the leading edges and keep the colony separated from slower-growing neighbours.