Description
Prince of Darkness Hammer Coral is a hammer coral with broad, hammer-shaped polyp tips and flowing tissue. Its movement and coloration are best displayed when the coral is given stable reef conditions, suitable light, and gentle indirect water movement.
Hammer Coral Care
Hammer corals respond best to stable reef conditions. Place this coral where its fleshy polyps can sway without being folded over or driven against the skeleton by a direct stream. Acclimate it gradually to your lighting and leave open space around the colony for nighttime sweeper tentacles.
| Lighting | Medium — PAR 100–200 |
|---|---|
| Flow | Medium — indirect |
| Placement | Mid rockwork with gentle, indirect flow; allow 4–6 inches of clearance for sweeper tentacles |
| Feeding | Primarily photosynthetic; optional small portions of appropriately sized meaty foods 1–2 times weekly |
| Care level | Intermediate |
| Water Parameters | Salinity 1.025–1.026 · Temperature 76–78°F · Alkalinity 8–9 dKH · Calcium 420–440 ppm · Magnesium 1300–1400 ppm |
Placement and Acclimation
Branching hammer corals grow as separate heads on a branching skeleton; protect the soft tissue from abrasion when handling or positioning the frag. Start at the lower end of the stated light range, then adjust gradually while watching polyp extension and tissue condition. Keep the coral separated from neighbors that could be reached by its sweepers.
Maintain consistent salinity and alkalinity, and avoid sudden changes in light or flow. Do not force food into retracted polyps; stable conditions and appropriate placement matter more than heavy feeding.
Shipping & Live Arrival Guarantee
- UPS Next Day Air, Tuesdays and Wednesdays. We hold the box if the weather at either end puts the animals at risk. Livestock ships in a 4-spot box: a frag takes 1 spot, a colony takes 2, and up to 4 spots ship for one shipping charge. Each box ships UPS Next Day Air for $30 in Florida or $50 elsewhere in the continental U.S. Eligible livestock orders of $299 or more ship the first box free. A $20 Box & Handling Fee applies per box, including on free-shipping orders. We do not ship to Alaska or Hawaii.
- Live arrival guaranteed. Photograph the animal in the sealed, unopened bag and send it to us within 4 hours of the delivery scan.
- Approved claims are resolved with a replacement or store credit. We do not issue cash refunds on livestock.
- Coverage is for condition on arrival and ends at acclimation.
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Conditioned in our Key West systems · FL Aquaculture Certificate #AQ0254072 · (305) 850-9949


















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