Gobstoppers Zoa: Propagation Guide

Propagating the Gobstoppers zoa (Zoanthus sp.), a purple-skirt neon-ring morph that grows slowly, by cutting the stolon mat and mounting frags, with mandatory palytoxin safety.

Overview

Gobstoppers is an iconic Zoanthus morph (family Zoanthidae) with a deep purple skirt, a neon green ring, and a red mouth. It is a sought-after trade-named strain of these colonial button polyps rather than a separate species, and it is reported as a slow grower. The polyps of a colony remain connected by a stolon, or coenenchyme mat, and Zoanthus is known for displaying a large number of color morphs of the same or similar species.

Reproductive Mode

Aquarium propagation is asexual. A colony grows because offspring polyps stay attached to the original by a fleshy stolon, and new polyps bud along the mat across the rock. Hobbyists use this budding to expand a Gobstoppers colony, though its slow growth means it spreads gradually.

Fragging / Asexual Propagation

Select edge polyps and cut the connecting stolon mat with a clean razor blade.
Trace the cut with coral cutters until the section frees; a diamond band saw is used for thick rock.
Soak and dry a plug or rubble, dry the frag base, and apply a small amount of cyanoacrylate glue.
Press the frag onto the plug, let it cure for a few seconds, and return it to the tank.
New tissue and polyps show the frag has established.

Conditions for Propagation

Zoanthus are hardy and accept lighting from lower to higher levels with about 8 to 12 hours of light per day. Healing frags do best in moderate to higher flow that feeds the polyps and clears waste. Because Gobstoppers grows slowly, patience is needed before the stolon fills a plug.

Palytoxin Safety

Zoanthids can contain palytoxin, one of the most poisonous non-protein substances known. Wear gloves and eye protection during fragging, avoid touching your face, and wash up afterward. Never boil, heat, or scrape the rock, since heat can aerosolize the toxin for inhalation. There is no antidote; only the symptoms can be treated.

Common Challenges

Cut polyps may stay closed for several days while healing; stable parameters and gentle flow aid recovery. Gobstoppers is a slow grower, so colonies expand only gradually and demand patience. The deep purple, neon, and red coloration depends on lighting and water quality, and the foremost hazard is palytoxin exposure.