Name: Euphyllia Glabrescens
Water parameters: Nitrate 5-20 mg/l, Phosphate 0,05-0,15 mg/l
Feeding: No feeding required, but may be fed plankton (e.g. Goldpods) if desired
Care level: Easy/Moderated
Euphyllia like Hammer corals are found all over the tropical waters of the Pacific. In particular, they are regularly harvested from the islands of the Indopacific including Fiji, Tonga, Solomon Islands, and the Great Barrier Reef.
Torch corals are LPS meaning as stony corals, they require consistent levels of calcium, alkalinity, and to a lesser degree magnesium in order to grow their calcium carbonate skeleton. The amount of supplementation needed to maintain calcium, alkalinity, and magnesium depends a lot on the size and growth rate of the stony corals in your tank.
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 Hammer and is pleasing aesthetically.
Torch corals are LPS meaning as stony corals, they require consistent levels of calcium, alkalinity, and to a lesser degree magnesium in order to grow their calcium carbonate skeleton. The amount of supplementation needed to maintain calcium, alkalinity, and magnesium depends a lot on the size and growth rate of the stony corals in your tank. Agonizing over these levels might be mental overkill for this coral, but it is good to periodically test just to make sure everything is in the ballpark of natural sea water levels. A couple parameters worth paying closer attention to is nitrate and phosphate. LPS corals are sensitive to declining water quality and elevated levels of nitrate and phosphate are an indicator of declining water quality. Low nitrate levels around 5-10ppm are actually welcome for large polyp stony corals, but around 30-40ppm of nitrate you might start running into some issues such as tissue recession. In extreme cases, you might see a torch coral go through full-fledged polyp bailout which we will cover in a little bit.
Corals developed all kinds of adaptations to gain a competitive advantage in the battle for real estate on the reef. In our home aquariums we have to be conscious of these in order to create the best environment for them long term. Euphyllia are one of the corals that extends long sweeper tentacles. Sweeper tentacles are often used as a means of defence against other encroaching coral colonies. Their white tips contain a concentration of nematocysts 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. Like most coral, Euphyllia rely to a large extent on the products of their zooxanthellae, however, in our experience, they also benefit from direct feeding. Hammers, torches, and frogspawn do not seem to aggressively feed like other LPS, so finding the right food can be a challenge.