Cosmoflower Zoa Propagation Guide

How to propagate the metallic-teal, orange-center Cosmoflower Zoanthus morph by dividing the colonial mat, with palytoxin handling precautions.

Overview

Cosmoflower is a designer Zoanthus morph with a metallic-teal skirt and an orange centre. It belongs to the genus Zoanthus (family Zoanthidae) and grows as a colony of button polyps connected by a shared tissue mat. The colony is photosynthetic and spreads over rock under stable reef parameters, so it is propagated by dividing established clonal growth.

Reproductive Mode

Hobby increase of Cosmoflower is asexual. Polyps bud from the connecting stolon, expanding the colony outward, and fragging removes sections of that clonal mat. Reproducing the morph this way preserves its metallic-teal and orange coloration in daughter colonies.

Fragging / Asexual Propagation

Following Reef Builders, score the tissue around the polyps with a razor blade and trace the line with coral cutters until the section frees, staying as close to the base as possible. A frag carried on its plug or disc gives a firm gluing surface and protects the polyps' internal structures.

Wear gloves and eye protection before any out-of-water step.
Score the stolon mat between polyps with a fresh razor blade.
Trace the cut with coral cutters until the frag detaches near the base.
Dry the plug and frag base, add a small dab of glue, and seat the frag gently.
Return it, baster off mucus, and let it re-anchor and bud new polyps.

Conditions for Propagation

Lighting: 50-150 PAR (medium)
Flow: low
Temperature: 24-26 degC
pH: 8.1-8.4; salinity 1.024-1.026
Nitrate below 15 ppm, phosphate below 0.1 ppm

Palytoxin Safety

Palytoxin is documented in Zoanthus and Palythoa, and aquarists have been poisoned handling colonies at home. There is no antidote, so protective equipment is the only reliable safeguard during propagation.

Common Challenges

Glue creeping onto the skirt, cuts that damage internal structures, and unstable parameters that keep polyps closed are the usual reasons frags stall. Use minimal glue, cut cleanly near the base, and hold chemistry steady until new polyps appear.