Hammer Coral
The Hammer Coral is a large polyp stony (LPS) coral and often referred to as Euphyllia Hammer Coral or Anchor Coral. Its common names are derived from the appearance of its hammer-, or anchor-shaped tentacles. Its polyps are visible throughout the day and night and hide its skeletal base. It may be green, tan, or brown in color, with lime green or yellow tips on the ends of its tentacles that glow under actinic lighting. Some varieties may be branched which makes them look similar to a Torch Coral (E. glabrescens).
It is moderately difficult to maintain, but with proper water conditions in the aquarium, it will thrive. It will require moderate lighting combined with moderate water movement within the aquarium. At night, its sweeper tentacles can extend up to six inches.
| Features | Details |
|---|---|
| Common Names | Hammer Coral, Anchor Coral, Euphyllia Coral |
| Color | Green, tan, brown with lime green or yellow tips |
| Lighting | Moderate |
| Water Movement | Moderate |
| Polyp Visibility | Day and night |
| Tentacle Extension | Up to six inches at night |
FAQ
What are the lighting and water movement requirements for the Hammer Coral?
The Hammer Coral requires moderate lighting and moderate water movement to thrive.
Does the Hammer Coral have visible polyps during the day and night?
Yes, its polyps are visible throughout the day and night, and they hide the skeletal base.
Can the Hammer Coral grow in a branched form?
Some varieties of Hammer Coral may be branched, resembling a Torch Coral (E. glabrescens).
David Anderson –
The Hammer Coral has been a stunning addition to my reef tank. The coloration is vibrant, especially under actinic lighting. The polyps are active both day and night, and the tentacles extend nicely at night. I’ve maintained moderate lighting and water flow, and it’s been thriving well.
Caroline North –
I found the coral to be quite beautiful with its green and yellow tips. It’s not the easiest to set up, but once I adjusted the lighting and flow, it settled in well. The sweeper tentacles are active at night, which is a nice feature.
Irene Sharp –
After a few months, the coral has grown steadily and looks more natural than expected. The branching form I received is unique and adds depth to the tank. I appreciate the detail in the color and texture.