Tubipora musica (Organ Pipe Coral) Propagation Guide

Propagating the organ pipe coral Tubipora musica by breaking its red calcareous tube skeleton, with notes on its octocoral polyps and zooxanthellae.

Overview

Tubipora musica, the organ pipe coral, is an octocoral and the only genus in the monotypic family Tubiporidae, described by Linnaeus in 1758. It builds a hard skeleton of calcium carbonate containing many organ-pipe-like tubes; the skeleton is bright red but is usually obscured by the living polyps, which appear green, blue or purple. Each polyp is less than 3 mm wide with eight feather-like tentacles, and colonies are dome-shaped.

Reproductive Mode

Unlike the wholly soft-bodied octocorals in this group, Tubipora carries a calcareous tube skeleton, so asexual propagation is done by dividing that skeletal mass into pieces that each retain living polyps.

Fragging / Asexual Propagation

A frag is made by breaking or cutting the red calcareous tube skeleton into sections that still carry polyps, then mounting each piece on a clean plug or rock so the colony can continue building new tubes from the surviving polyps.

Conditions for Propagation

The polyps contain zooxanthellae, the symbiotic algae that supply much of the colony's energy. In the wild the coral prefers good, bright light and medium to strong currents at depths of 2 to 20 m, so frags settle under bright light and moderate flow matching the parameters recorded for this species in the knowledge base.

Common Challenges

Because the tubes are skeletal, fragging risks crushing polyps, and dissolved organic matter meets only about 13% of the coral's metabolic needs, so reliable light and water quality are essential. Tubipora is listed as near threatened with over half its population lost in the past ten years, making aquarium propagation valuable for reducing wild collection.