Red and Green St Thomas Coral
St Thomas mushroom (rhodactis sanctithomae) is a soft coral covered in bulb or flame-like tips. It is very easy to care for, requiring low to moderate lighting and water flow. It can be placed on the sand and will eventually settle into its preferred location. Works well with other corals as long as they are kept at a safe distance. St Thomas mushrooms can sting other corals, so it is best to space them out from other species.
These St. Thomas Mushrooms feature a pink base with green or blue accents. Typical size ranges from 1″ to 2″.
| Feature | Detail |
|---|---|
| Species | rhodactis sanctithomae |
| Color | Pink with green or blue tips |
| Size | 1″ – 2″ |
| Lighting | Low to moderate |
| Flow | Low to moderate |
| Compatibility | Works with other corals when spaced apart |
FAQ
What is the ideal lighting and flow for St Thomas mushrooms?
St Thomas mushrooms require low to moderate lighting and flow to thrive.
Can St Thomas mushrooms be kept with other corals?
Yes, but they should be spaced apart to avoid stinging other corals.
Do St Thomas mushrooms need feeding?
While photosynthetic, they can benefit from zooplankton or brine shrimp for added nutrition.



Wanda Hughes –
Easy to set up and grows well in my tank. I placed it on the sand and it settled in nicely. The colors are vibrant and it looks great with my other corals when kept at a distance.
William Ferguson –
Grew quickly under moderate lighting. I noticed it didn’t interact with nearby corals, which is good. The green and pink combination is very eye-catching.
Madeleine Rutherford –
Very stable in my tank. I feed it brine shrimp weekly and it seems to respond well. No issues with stinging other corals as long as I keep it spaced out.