Euphyllia (Hammer, Torch and Fox Corals)

Class Anthozoa, Order Scleractinia, Family Euphyllidae, Genera Euphyllia and Nemenzophyllia

top photo by Mike LaPorte
last three photos by Charlie Ehlers

Common names: hammer coral, branched hammer coral, torch coral, pom-pom coral, whisper coral, fox coral
Natural origin: Indo-Pacific
Sensitivity (Level 2):
Though generally tolerant, they need to be fed and placed properly (see below).
Feeding: These corals have good prey capture ability and can feed on mysis shrimp, chopped krill, and other meaty marine foods.
Lighting (Level 5 to 7): Preferred lighting depends on species, but most prefer moderate (or intense but indirect) lighting.
Water flow: Place in an area of moderate water flow.
Placement: These corals can be quite aggressive, displaying long, powerful stinging sweeper tentacles. Please place them safety away from other corals. Do not keep with leather corals that may be toxic to larger polyped stony corals. Also avoid housing with hermit crabs.
General: If not otherwise explained, slow tissue recession may be a sign of starvation. Target feeding may help this situation. These corals seem to be more susceptible to brown jelly disease than most other corals. To help prevent disease, be careful not to damage the coral while handling and avoid housing with hermit crabs that can irritate the coral's soft tissue.

Though not frequent or terribly common, larger colonies of these corals have been known to spawn in aquariums.  Sometimes spawning events can cause major changes in aquarium pH and/or otherwise threaten water quality.