Macroalgae Farms

Orange St Thomas Mushroom

$103.49 $114.99

-10%

Key Features:
⭐ Rare Caribbean vesicled mushroom with bulb-tipped tentacles — one of the most textured mushroom silhouettes in the hobby
• Colors range across deep blue and purple bases with red, orange, and tangerine polyps
• Native to Caribbean reefs — genuinely rare, wild-collected, and unlike any Indo-Pacific species
• Premium collector-grade mushroom coral with beginner-friendly hardiness

Low in stock

This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!

Estimated delivery between September 06 and September 08.

Orange St Thomas Mushroom

$103.49 $114.99

About this item

St. Thomas Mushroom

Note: This is a general description of the species — the specific specimen you receive may vary in color, size, and appearance.

The St. Thomas Mushroom (Rhodactis sanctithomae) is one of the rarest, most visually dramatic, and most coveted mushroom corals in the entire saltwater hobby. A bubble-covered disc with prominent raised vesicles and bulb-tipped tentacles glows across some of the most vivid colors in the coral trade — deep blue and purple bases contrasted against fiery red, orange, and tangerine polyps, with the classic premium expression combining a deep sapphire blue base with electric red bulb tips — a color signature completely unlike any other mushroom coral available in the hobby. Native exclusively to the reefs surrounding St. Thomas and the wider Caribbean, this species is one of the most genuinely scarce mushrooms in the entire trade — the kind of specimen serious mushroom collectors actively hunt for.

What makes the St. Thomas Mushroom such a prized collector piece is the combination of extraordinary color saturation, dramatic vesicle-covered surface texture, and genuine rarity of origin. St. Thomas mushrooms are wild-collected almost exclusively from Caribbean reefs and rarely appear in mainstream livestock shipments — the kind of coral that anchors a curated soft coral collection or Caribbean biotope display. Mature specimens can expand to 3 to 4 inches across, giving each mushroom dramatic showpiece presence on the rockwork, and the vivid fluorescent red and orange coloration under actinic reef lighting is unmatched by any other mushroom in the trade. Despite its rarity and premium pricing, St. Thomas mushrooms are legitimately beginner-friendly to keep — hardy, adaptable, and forgiving of typical reef parameters once given the correct low-light placement.

Available Options

Full Starter Plant

One St. Thomas Mushroom ( Rhodactis sanctithomae ) — exact color and morph selected from current availability. Vesicle-covered disc with bulb-tipped tentacles and dramatic Caribbean color saturation. Reef-safe soft coral — provide light spacing from delicate neighbors. Grows into a dramatic 3 to 4 inch premium showpiece at maturity.

Care Information

Lighting	Low to Moderate (PAR 50–120) — avoid intense lighting
Water Flow	Low to Moderate — gentle, indirect flow preferred
Placement	Mid to lower rockwork or sandbed
Care Level	Easy — beginner-friendly collector-grade
Temperament	Peaceful — provide light spacing from delicate neighbors
Feeding	Photosynthetic — benefits from occasional target feeding

Special Considerations

St. Thomas Mushrooms prefer low to moderate lighting and can lose color or bleach under intense reef lighting — place in shaded lower rockwork or sandbed positions rather than high-light peaks. The vivid fluorescent red and orange coloration reads most dramatically under actinic and blue-heavy reef lighting, though direct high-intensity white spectrum can cause bleaching. Provide gentle, low-velocity flow to allow full disc expansion; direct high-flow placement will prevent the mushroom from opening fully. St. Thomas mushrooms derive nearly all of their nutrition from photosynthesis, though they will readily accept target feeding of mysis, small pieces of shrimp, or coral feeding preparations to accelerate growth and color development. Unlike smooth Discosoma mushrooms, St. Thomas mushrooms can lightly sting delicate neighboring corals in direct contact — provide 2 to 3 inches of spacing from other coral species. St. Thomas mushrooms can occasionally detach and drift to a new location if unhappy with placement conditions — this is normal behavior and the mushroom will typically settle in a new spot within days. Maintain stable water parameters and elevated nutrients (nitrate 5-15 ppm, phosphate 0.05-0.15 ppm) — St. Thomas mushrooms specifically dislike ultra-low nutrient systems.

🔍 Aquarium Insights

The St. Thomas Mushroom is one of the rarest and most visually dramatic mushroom corals available to reef keepers:

Bubble-covered vesicled disc with bulb-tipped tentacles — one of the most textured and dimensional mushroom silhouettes in the hobby
Native to Caribbean reefs — genuinely rare in the trade and unlike any Indo-Pacific mushroom species
A premium collector-grade Caribbean mushroom that combines fluorescent color saturation with beginner-friendly hardiness — the crown jewel of the Rhodactis family for serious mushroom collectors

Learn More

For detailed species information, compatibility, and care tips, visit our Species Library.

Livestock Disclaimer

Due to natural variation, the St. Thomas Mushroom you receive will be selected based on current availability and may range across the full spectrum of colors and morphs available in this species — including deep blue and purple bases with red, orange, or tangerine polyps; solid red, blue, or orange expressions; and green-blue combinations. Specific color and morph cannot be guaranteed and are determined at packing time.

Photographs are representative examples. Individual specimens may vary in size, disc diameter, vesicle density, and color expression.

As with all live animals, proper acclimation and a suitable, established environment are essential for best results.

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