Propagating Gold Torch Coral (Euphyllia glabrescens)

Fragging guide for the Gold Torch, a color morph of Euphyllia glabrescens: cutting between phaceloid heads, plus potent sweeper-tentacle and brown-jelly precautions.

Overview

The Gold Torch is a prized color morph of Euphyllia glabrescens with metallic gold tentacles and pink or purple tips, collected mainly from Australia. It is a large-polyped stony coral of the family Euphylliidae with long tubular tentacles arranged on a phaceloid skeleton of corallites about 20-30 millimeters across. Like the base species it depends on symbiotic zooxanthellae and is a slow grower.

Reproductive Mode

As a morph of Euphyllia glabrescens, the Gold Torch reproduces sexually in the wild and asexually by colony division. Because the gold coloration is a clonal trait, hobbyists multiply this morph only by fragging, separating individual heads to preserve the parent's color.

Fragging / Asexual Propagation

Each torch head sits on its own corallite within the phaceloid skeleton, so the Gold Torch is fragged by cutting between heads along the skeleton, generally without cutting living flesh. Each frag keeps a head on its own piece of skeleton, and after dipping and mounting it heals and grows out into a new colony.

1. Use sterile bone cutters or a rotary tool, with gloves and eye protection.
2. Cut between heads along the phaceloid skeleton, keeping skeleton under each head.
3. Avoid cutting into polyp flesh to limit the chance of infection.
4. Dip and mount the frags, then place them in adequate flow to heal.

Conditions for Propagation

Gold Torch frags recover under moderate lighting and moderate flow, with stable alkalinity, calcium, and magnesium and low nutrients. As a slow-growing collector morph, the Gold Torch settles gradually, so keep conditions steady and avoid disturbing freshly mounted frags while their tentacles re-extend.

Sexual Reproduction

Sexual reproduction follows that of Euphyllia glabrescens: broadcast spawning with gametes released into the water for external fertilization around lunar cues. This wild route is not used by hobbyists, who clone the morph through fragging to keep its gold color.

Common Challenges

Torch corals carry long sweeper tentacles tipped with potent stinging cnidocytes and are among the more aggressive Euphyllia, so Gold Torch frags need wide spacing from other corals. The most serious post-fragging risk is brown jelly disease, which can kill a colony within weeks and spread to neighbors; never frag or place a specimen already showing a brown gel-like coating.