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Corallimorph (soft)

Hairy mushroom

Rhodactis spp.

Also sold as Bounce mushroom (some)

Hairy mushroom (Rhodactis spp.)
Photo: Haplochromis, Public domain, via Wikimedia Commons
Type
Corallimorph (soft)
Care level
Beginner (bounce morphs Intermediate)
Light
30 to 120 PAR (low)
Flow
Low
With neighbours
Spreads or stings mildly

Safety: handling hairy mushroom

Low hazard

How do you care for hairy mushroom?

Placement

Low rock

Flow

Low

Feeding

Optional; will take small meaty foods

Growth

Moderate

Water quality

As Discosoma

How much light does it need?

Sources put it at about 30 to 120 PAR, measured where the coral sits. No figure was published for this coral itself, so this is the usual range for its group. Start a new coral at the low end and raise it over weeks.

Reported to do very well under low light. typical, check

Which neighbours are safe?

Slightly more aggressive than Discosoma; can engulf small frags placed too close typical, check

5 cm or more

Fish

Fish known to nip this group of corals, or small enough to be caught by it.

Take care (4)

  • Coral beautyCoral beauty may nip soft corals, more so when underfed.
  • Flame angelfishFlame angelfish may nip soft corals, more so when underfed.
  • Foxface rabbitfishFoxface rabbitfish may nip soft corals, more so when underfed.
  • Moorish idolMoorish idol may nip soft corals, more so when underfed.

Other corals

Corals that can harm this one if placed too close.

Take care (10)

  • Hammer coralHammer coral stings neighbours up to about 15 cm away at night; keep the hairy mushroom out of reach.
  • Frogspawn coralFrogspawn coral stings neighbours; keep the hairy mushroom out of reach.
  • Torch coralTorch coral stings neighbours; keep the hairy mushroom out of reach.
  • GalaxeaGalaxea stings neighbours up to about 15 cm away at night; keep the hairy mushroom out of reach.
  • Horn coralHorn coral stings neighbours; keep the hairy mushroom out of reach.
  • Fire coral (not Acropora millepora)Fire coral (not Acropora millepora) stings neighbours; keep the hairy mushroom out of reach.
  • Bubble tip anemoneBubble tip anemone stings neighbours; keep the hairy mushroom out of reach.
  • Mini maxiMini maxi stings neighbours; keep the hairy mushroom out of reach.
  • Carpet anemones (Haddon's, giant)Carpet anemones (Haddon's, giant) stings neighbours; keep the hairy mushroom out of reach.
  • Ritteri anemoneRitteri anemone stings neighbours; keep the hairy mushroom out of reach.

Invertebrates

Invertebrates that may nip corals when hungry.

Take care (3)

These checks follow the reasons fish and invertebrates clash: same species or genus, similar shape, mouth size, temperament, food, burrows, tank size and the order they are added. Individual animals differ; every source agrees on that.

Pests, dips and quarantine

As Discosoma

As Discosoma

No dip reliably kills pest eggs, so a dip lowers the risk rather than removing it. Inspect new frags with a torch after lights out, including the underside and the plug.

Sources

  1. Gensou mushroom coral guideRead 21 October 2026, search summary only.

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