Cup Coral
Tubastraea faulkneri
A brilliant non-photosynthetic cup coral that thrives in the shadows of the reef.

About
Found across tropical Pacific reef environments, Tubastraea faulkneri is a non-photosynthetic cup coral. Meaning it gets zero energy from light and relies entirely on direct feeding to survive. That single fact defines everything about keeping it. Unlike most corals in the hobby, this one actually prefers low-light spots: overhangs, caves, shaded ledges, and the undersides of rockwork. Its bold coloration, typically vivid orange or yellow polyps against a matching skeletal base, makes it a real conversation piece when positioned well in a display. The polyps expand noticeably at feeding time, which usually means after the lights go down, though many hobbyists train them to open during the day with consistent target feeding. And that's the catch. This coral genuinely needs to be fed regularly with meaty foods like mysis, enriched brine, or coral-specific preparations. Skip feedings for too long and the colony will slowly decline regardless of how well everything else is dialed in. It's not an impossible animal to keep, but it demands more active involvement than a typical photosynthetic coral, making it best suited to keepers who are already comfortable with a consistent maintenance routine.
Similar species
Other coral you might consider
Good tank mates
Species that tend to coexist peacefully with Cup Coral
From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- What does the Cup Coral eat?
- The Cup Coral is a filter feeder. It eats tiny particles suspended in the water and usually needs target feeding in a home tank.
- Is the Cup Coral reef safe?
- The Cup Coral is generally considered reef safe.