St. Thomas Mushroom

Rhodactis sanctithomae

Care Level	Easy
Lighting	Low to moderate
Water Flow	Low
Placement	Low rock / sand
Aggression	Peaceful
Coloration	Metallic green, red/orange and mottled morphs

Overview

The St. Thomas Mushroom is a Caribbean Rhodactis with a fuzzy, bumpy disc that comes in metallic green and red-orange morphs. A hardy, forgiving corallimorph — one of the best beginner corals — that multiplies readily.

Care & Placement

Thrives in low-to-moderate light and gentle flow; too much of either makes it shrink or detach. Place it low on the rock or on the sand bed. Once settled it spreads by splitting into a colorful colony.

Feeding

Photosynthetic; larger Rhodactis will also capture and eat small meaty foods (mysis, chopped seafood) target-fed occasionally.

Propagation

Very easy — it self-propagates by fission; you can also cut the disc and let each piece heal on rubble.

Cautions

Peaceful and undemanding, but can slowly overgrow neighbors in ideal conditions — give it its own patch of rock. Large Rhodactis can rarely catch small shrimp.