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Hammer Coral

Hammer Coral

Euphyllia ancora

Hammer Coral is a stunning LPS coral whose fleshy polyps extend into distinctive T- or anchor-shaped tips in shades of green, gold, and tan. It is moderately aggressive, using sweeper tentacles at night to sting neighboring corals, so ample spacing is essential. A great LPS choice for intermediate reefers — it tolerates moderate light and flow and responds visibly to feeding with mysis or reef roids.

TemperamentSemi-aggressive
Max Size12"
Care LevelModerate
CategoryCoral

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Compatibility Chart for Hammer Coral

See how Hammer Coral gets along with every other species in our database.

Great Match (8)

Yellow Tang Great No issues Blue Hippo Tang Great No issues Ocellaris Clownfish Great Clowns love to host in hammer corals True Percula Clownfish Great Percula loves hosting in hammers Firefish Goby Great Reef safe Mandarin Dragonet Great No issues Green Chromis Great No issues Sexy Shrimp Great Will host in hammer coral — adorable

Compatible (58)

Powder Blue Tang Compatible No known issues between these species Kole Tang Compatible No known issues between these species Naso Tang Compatible No known issues between these species Clarkii Clownfish Compatible May host but less damaging than maroon; monitor Six Line Wrasse Compatible No known issues between these species Fairy Wrasse Compatible No known issues between these species Melanurus Wrasse Compatible No known issues between these species Cleaner Wrasse Compatible No known issues between these species Yellowspotted Wrasse Compatible No known issues between these species Clown Goby Compatible No known issues between these species Yellow Watchman Goby Compatible No known issues between these species Blue Devil Damselfish Compatible No known issues between these species Yellowtail Damselfish Compatible No known issues between these species Longnose Butterflyfish Compatible No known issues between these species Flame Hawkfish Compatible No known issues between these species Longnose Hawkfish Compatible No known issues between these species Midas Blenny Compatible No known issues between these species Tailspot Blenny Compatible No known issues between these species Lawnmower Blenny Compatible No known issues between these species Bicolor Blenny Compatible No known issues between these species Royal Gramma Compatible No known issues between these species Banggai Cardinalfish Compatible No known issues between these species Pajama Cardinalfish Compatible No known issues between these species Purple Tang Compatible No known issues between these species Scopas Tang Compatible No known issues between these species Achilles Tang Compatible No known issues between these species Clown Tang Compatible No known issues between these species Sohal Tang Compatible No known issues between these species Convict Tang Compatible No known issues between these species Tomini Tang Compatible No known issues between these species Horn Shark Compatible No known issues between these species Foxface Rabbitfish Compatible Generally reef-safe with LPS Magnificent Foxface Compatible No known issues between these species One Spot Foxface Compatible No known issues between these species Masked Rabbitfish Compatible No known issues between these species Clown Triggerfish Compatible No known issues between these species Bluechin Triggerfish Compatible Generally reef safe Undulate Triggerfish Compatible No known issues between these species Pinktail Triggerfish Compatible No known issues between these species Sebae Anemone Compatible No known issues between these species Skunk Cleaner Shrimp Compatible No known issues between these species Fire Shrimp Compatible No known issues between these species Peppermint Shrimp Compatible No known issues between these species Tiger Pistol Shrimp Compatible No known issues between these species Emerald Crab Compatible No known issues between these species Blue Leg Hermit Crab Compatible No known issues between these species Turbo Snail Compatible No known issues between these species Nassarius Snail Compatible No known issues between these species Tuxedo Urchin Compatible No known issues between these species Red Fromia Starfish Compatible No known issues between these species Torch Coral Compatible Same genus Euphyllia; can touch safely Frogspawn Coral Compatible Euphyllia can coexist with spacing Zoanthids Compatible No known issues between these species Mushroom Coral Compatible No known issues between these species Ricordea Florida Compatible Generally fine with spacing Ricordea Yuma Compatible Fine with spacing Green Star Polyps Compatible No known issues between these species Pulsing Xenia Compatible No known issues between these species

Somewhat Compatible (9)

Maroon Clownfish Somewhat Compatible Maroon clowns host so aggressively they frequently kill hammer coral through thrashing and mucus buildup Flame Angelfish Somewhat Compatible May nip at fleshy LPS polyps Coral Beauty Angelfish Somewhat Compatible May pick at polyps Copperband Butterflyfish Somewhat Compatible May occasionally pick at LPS Niger Triggerfish Somewhat Compatible Somewhat risky Rhodactis Mushroom Somewhat Compatible Both aggressive; give wide spacing Bounce Mushroom Somewhat Compatible Both aggressive; space needed Leather Coral Somewhat Compatible Some chemical stress possible Duncan Coral Somewhat Compatible Hammer sweepers can reach duncan

Risky (10)

Raccoon Butterflyfish Risky Will nip at LPS Bubble Tip Anemone Risky Both have potent stings; chemical warfare Magnificent Anemone Risky Both sting; anemone wins Long Tentacle Anemone Risky Stinging battle Chicago Sunburst BTA Risky Both have potent stings; chemical warfare Rose Bubble Tip Anemone Risky Chemical warfare; both sting Rainbow Bubble Tip Anemone Risky Both sting; warfare Colorado Sunburst BTA Risky Chemical warfare Acropora Risky Hammer sweeper tentacles kill SPS on contact Montipora Risky Sweeper tentacles will damage montipora

Not Compatible (7)

Emperor Angelfish Not Compatible Will eat all LPS coral polyps French Angelfish Not Compatible Will eat LPS Brownbanded Bamboo Shark Not Compatible Will crush LPS Epaulette Shark Not Compatible Will crush corals Coral Catshark Not Compatible Will knock over and crush Picasso Triggerfish Not Compatible Will bite and destroy coral Carpet Anemone Not Compatible Carpet consumes anything it touches

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