Captain America Zoa: Propagation Guide

Propagating the Captain America zoa (Zoanthus sp.), a red-white-blue ringed morph, by cutting the stolon mat and mounting frags, with required palytoxin precautions.

Overview

Captain America is a named Zoanthus morph (family Zoanthidae) marked by concentric red, white, and blue rings. It belongs to the broad pool of trade-named strains the hobby has produced from these colonial button polyps rather than to a distinct species. Within a colony the polyps stay joined by a stolon, or coenenchyme mat, and Zoanthus is well known for displaying many color morphs across the same or similar species.

Reproductive Mode

Propagation is asexual in the aquarium. Colonies form because offspring polyps stay attached to the parent by a fleshy stolon, and the mat buds new polyps that spread over the rock. Hobbyists rely on this stolon-driven budding to grow a Captain America colony; no sexual reproduction is involved.

Fragging / Asexual Propagation

Pick the polyps to separate and cut the stolon mat between them with a sharp razor blade.
Run coral cutters along the score line so the piece breaks away; thick rock bases are cut with a diamond band saw.
Soak and dry a frag plug or rubble, dry the frag base, and add a small bead of cyanoacrylate glue.
Press the frag onto the plug, hold a few seconds to cure, then return it to the tank.
Fresh tissue and new polyps confirm the frag has attached.

Conditions for Propagation

These corals are very hardy and tolerate lighting from lower to higher intensities over roughly an 8 to 12 hour day. Healing frags prefer moderate to higher flow, which carries nutrients to the polyps and removes waste. As the stolon advances, grouped frags grow together into a colorful mat across the rock.

Palytoxin Safety

Zoanthids may contain palytoxin, among the most poisonous non-protein substances known. Wear gloves and eye protection during fragging, keep hands away from your face, and wash thoroughly afterward. Do not boil, heat, or aggressively scrape the rock, because that can aerosolize the toxin for inhalation. No antidote exists; only symptoms can be treated.

Common Challenges

Newly cut polyps may remain closed for a few days while the wound seals; stable chemistry and gentle flow speed healing. The red, white, and blue banding of Captain America can shift with lighting and water quality. The principal challenge is safe palytoxin handling, not the mechanics of cutting.