Information
Torch corals are some of the most popular stony corals in the reef aquarium hobby. Torch corals have long tentacles tipped with a ball. This large polyp stony coral (LPS) is one of the most popular stony corals with reef keepers because of the way it sways in the current. Torch corals are similar in growth and care requirements to its Euphyllia cousins, the Hammer coral and the Frogspawn coral.
Lighting
Euphyllia corals such as Hammers, Torches, and Frogspawn do not require as much light as some other corals. They can be kept under normal output fluorescents without much difficulty. In some cases, Torches may extend more readily under subdued lighting, however it may display more attractive colors when placed under stronger lighting.
Water Flow
Moderate to strong water movement is recommended. One of the main draws to this type of LPS coral is how it sways in the current. Water flow is both healthy for the coral and is pleasing aesthetically.
Feeding
All corals are animals. ... The hammer coral is no different there–but unlike some of the other LPS species, Euphyllia ancora is not an active, ravenous eater. Hammer corals are more subdued eaters who would benefit from the occasional feeding of a meaty marine food like mysis shrimp. Feeding is fairly straightforward.
It may take some trial and error to determine the specific amount of food to administer for your aquarium and your torch corals. Feed your torch corals several times per week.
Warning and Handling
Euphyllia are one of the corals that extends long sweeper tentacles. Sweeper tentacles are often used as a means of defense against other encroaching coral colonies. Their white tips contain a concentration of nematcysts that can damage more delicate tank mates. Most of the time, this is not a major problem but to be safe, we recommend placing it in a location far from other corals initially.