Single St Thomas Mushroom

St. Thomas Mushroom Coral

Transform Your Tank with Bold Caribbean Color and Character

Looking for a standout centerpiece that delivers? The St. Thomas Mushroom — Discosoma sanctithomae — is one of the reef world's most visually striking soft corals, prized for its rich, often iridescent coloration and distinctive textured surface. Native to Caribbean reef systems, this species carries a regional exclusivity that sets it apart from Indo-Pacific mushrooms commonly found in the hobby. When you buy St. Thomas Mushroom coral online, you're not settling for ordinary — you're adding a genuine gem to your saltwater aquarium.

St. Thomas Mushrooms typically reach 3–5 inches in diameter at full expansion and are among the more rewarding corals to keep — they're hardy, happy in low flow and low to moderate lighting, and will multiply steadily into a lush colony over time. Their broad, fleshy disc has a commanding presence in any reef tank, and watching them expand fully under stable conditions is genuinely satisfying for aquarists at any experience level.

QUICK STATS & CARE GUIDE

• Common Name: St. Thomas Mushroom Coral
• Current Size: Approximately 1–3 inches (individual polyp)
• Care Level: Beginner to Intermediate
• Temperament: Semi-aggressive — maintain adequate spacing from neighboring corals
• Diet: Photosynthetic; benefits from occasional target feeding of zooplankton or fine meaty foods
• Reef Safe: With caution — can encroach on nearby corals as the colony spreads
• Water Conditions: Temp 72–78°F | Salinity 1.023–1.025 | pH 8.1–8.4 | Low flow | Low to moderate lighting (50–150 PAR)

WHY BUY FROM THE CORAL BOUTIQUE?

Every St. Thomas Mushroom we ship is ethically sourced, fully quarantined, and conditioned at our Miami facility — confirmed healthy, acclimated, and eating well before it ever reaches your door. That's the standard of care The Coral Boutique holds on every single marine specimen we offer.