Chili Coral
Nephthyigorgia
Also known as Chili Pepper Coral, Red Chili Coral, Chili Cactus Coral
Care at a glance
- Temperature
- 75–81°F (24–27°C)
- pH
- 8.1–8.4
- Adult size
- 5.9 in (15 cm)
- Minimum tank
- 20 gal (75 L)
- Temperament
- Peaceful
- Social behavior
- Solitary
- Swim level
- Bottom
- Difficulty
- Medium
- Breeding
- Hard
- Rarity
- Rare
- Reef safe
- Reef safe
- Origin
- Indo-Pacific, on shaded reef walls, ledges and the undersides of overhangs, common through Indonesia and the wider western Pacific
- Family
- Nephthyigorgiidae
Overview
This is the true chili coral, the hardiest of the non-photosynthetic soft corals sold under chili and carnation names, and often suggested as a first NPS coral before the far more demanding Dendronephthya or Scleronephthya. It carries no symbiotic algae and takes none of its energy from light, so it lives or dies on feeding. Plan on target feeding fine foods like phytoplankton, baby brine shrimp and other tiny plankton at least once a day, aimed into the flow so the polyps can catch it. It does not sting neighbors and stays small, but only add it to an established tank and a keeper ready for that daily routine and the extra waste it produces.
In the wild
Nephthyigorgia grows in shaded, current-swept spots across the Indo-Pacific, on reef walls, ledges and the undersides of overhangs where little direct light reaches. It forms a stout, fleshy stalk with thick, finger-like lobes, usually deep red, that sit deflated and lumpy through the day and swell at night to open a haze of small white feeding polyps. In the aquarium it wants low light or full shade and medium to strong indirect flow, placed under a ledge or in a cave where it is still easy to reach for feeding.
Good to know
Nephthyigorgia is a non-photosynthetic soft coral, now placed in its own family Nephthyigorgiidae in the order Malacalcyonacea after the 2022 reclassification of the soft corals, having long been filed under Nidaliidae. Its tissue is stiffened by tiny calcite sclerites that give the fleshy lobes their firmness, and because it carries no zooxanthellae it takes essentially all of its energy from capturing plankton rather than from light. It is almost always sold simply as Nephthyigorgia sp., since the trade rarely separates the species.
Did you know
The colony spends most of the day looking like a shriveled red lump, then does its feeding at night, inflating to several times its resting size and opening a fuzz of white polyps once the tank lights go out.
Where to buy
Some links may not be the exact species or variety.
- LiveAquaria Freshwater and saltwater fish, inverts and corals
- Saltwaterfish.com Marine fish, corals and inverts shipped overnight
…or ask your local fish store.
Appears in
Keeping Chili Coral?
Track water tests, reminders and stocking fit.
Related species

Birdsnest Coral
Seriatopora hystrix5.9 in (15 cm)20 gal (75 L)75–81°F (24–27°C)
Blastomussa
Blastomussa merletti5.9 in (15 cm)11 gal (40 L)75–81°F (24–27°C)
Blastomussa wellsi
Blastomussa wellsi5.9 in (15 cm)20 gal (75 L)75–81°F (24–27°C)
Cat's Paw Coral
Stylophora pistillata5.9 in (15 cm)20 gal (75 L)75–81°F (24–27°C)
Flower Tree Coral
Scleronephthya5.9 in (15 cm)20 gal (75 L)75–81°F (24–27°C)
Hairy Mushroom
Rhodactis5.9 in (15 cm)11 gal (40 L)75–81°F (24–27°C)
