Fungia scutaria Propagation Guide
Propagating the free-living Hawaiian plate coral Fungia scutaria relies on anthocaulus regeneration and daughter polyps from a damaged skeleton, not standard fragging.
Overview
Fungia scutaria, often marketed as the Hawaiian plate coral, belongs to the family Fungiidae. These mushroom corals are largely solitary animals that, in adulthood, sit unattached on the substrate as a single oval, slightly arched disc. That free-living, one-polyp body plan dictates how the coral can and cannot be propagated.
Reproductive Mode
Within Fungia, juveniles attach to rock while larger individuals detach and become free living, leaving an attachment scar behind. The species can reproduce both sexually and asexually, with asexual budding and regeneration providing the route used in captive propagation.
Fragging / Asexual Propagation
Unlike colonial corals, plate corals are not routinely cut into numerous frags. Fungia reproduce asexually: daughter polyps may form, and broken pieces of skeleton can develop into offspring through regeneration. Aquarists encourage this by stressing or partially cutting a specimen so the remaining skeleton regenerates new polyps over time, an extension of the natural anthocaulus process.
Conditions for Propagation
Stable, well-aged water and gentle low flow help an injured disc heal without tissue loss. As large-polyp corals that capture plankton and absorb dissolved organics, regenerating Fungia respond well to supplemental feeding while they rebuild tissue.
Sexual Reproduction
Sexually, Fungiidae spawn gametes into the water, and some species in the family are known to change sex. Rearing planulae through settlement is beyond practical home culture, leaving slow asexual regeneration as the realistic propagation method.
Common Challenges
The greatest hazards are tissue recession and infection at the cut margin, especially in marginal water quality. Because new-polyp regeneration is gradual, propagation should be planned as a months-long effort rather than a quick yield.